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Introducing The

C* Commodore

AMIGA

3000

Introducing The

C s Commodore

AMIGA

3000

About this Book

This book introduces you to the Commodore® Amiga®
3000 computer. The book briefly describes the major
components and features of the Amiga 3000 and tells how
each works.

Please read this book and Chapter 1 of the Using the System
Software manual included with your computer. You should
then be ready to use programs like word processors,
spreadsheets, etc. Of course you will also have to read the
manual for each program you want to use.

The Amiga 3000 is a sophisticated, powerful machine. As you
are using it you may find that you need or want additional
information on its general operation and specific features.
You can find detailed hardware information on the A3000 in
this manual. You can find detailed software information in
the Using the System Software manual.

NOTE: You can read this introductory book either
before or after you unpack and set up your computet
HOWEVER, WHEN YOU DO SET UP YOUR
COMPUTER BE SURE TO FOLLOW THE
INSTRUCTIONS GIVEN IN THE AMIGA 3000
QUICK CONNECT.

Introducing the Commodore Amiga 3000, Rev 5
First Printing January 1991

Copyright © 1990 by Commodore-Amiga Incorporated. All Rights Reserved. This docu-
ment may not, in whole or in part, be copied, photocopied, reproduced, translated or
reduced to any electronic medium or machine readable form without prior consent, in
writing, from Commodore.

Commodore and the Commodore logo are registered trademarks of Commodore Electron-
ics Limited. Amiga is a registered trademark of Commodore- Amiga. AmigaDOS, Auto-
Config, A3000, Bridgeboard and Workbench are trademarks of Commodore- Amiga.

All other trademarks are the property of the respective trademark owners.

Nothing contained in this document shall give rise to warranties or guarantees, either
expressed, or implied, with respect to the products described herein, their functionality,
compatibility or availability. Further, Commodore assumes no responsibility or liability
for statements or representations made by itself or by third party vendors or in the
publications reproduced herein. IN NO EVENT WILL COMMODORE BE LIABLE FOR
DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING
FROM ANY CLAIM ARISING OUT OF THE REPRESENTATIONS MADE HEREIN,
EVEN IF IT HAS BEEN ADVISED OF THE POSSIBILITIES OF SUCH DAMAGES. SOME
STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF SUCH WARRAN-
TIES OR DAMAGES, SO THE ABOVE EXCLUSION OR LIMITATIONS MAY NOT
APPLY.

Information in this document is subject to change without notice and does not represent a
commitment on the part of Commodore.

NOTICE: If this product is being acquired for or on behalf of the United States of America,
its agencies and/or instrumentalities, it is provided with RESTRICTED RIGHTS, and all
use, duplication, or disclosure with respect to the included software and documentation is
subject to the restrictions set forth in the Rights in Technical Data and Computer
Software clause at 252.227-7013 of the DOD FAR and the Rights in Data— General clause
at 52.227-14 of the FAR. Unless otherwise indicated, the manufacturer/integrator is
Commodore Business Machines, Inc., 1200 Wilson Drive, West Chester, PA 19380.

FCC USER'S MANUAL STATEMENT

WARNING:

This device complies with Part 15 of the FCC Rules. It also complies with Standard
C108.8-M1983 ofthe Canadian Standards Association's Regulations. Operation is subject
to two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation. If this device does cause interference, correct it by doing any of the following:

• Reorient the receiving antenna or AC plug.

• Change the relative positions of the device and the receiver.

• Plug the device into a different outlet so the device and receiver are on different
circuits.

CAUTION: Only equipment with shield-grounded cables (computer input-output de-
vices, terminals, printers, etc.}, certified to comply with appropriate FCC limits can be
attached to this device. Operation with non-certified equipment may result in communi-
cations interference. Changes or modifications to this device not expressly approved by
the party responsible for compliance could void the user's authority to operate the device.

Your house AC wall receptacle must be three-pronged type (AC ground). If it is not,
contact an electrician to install the proper receptacle. If a multi-connector box is used to
connect the computer and peripherals to AC, the ground must be common to all units.

If necessary, the user should consult the dealer or an experienced radio-television techni-
cian for additional suggestions. The user may find the following booklet helpful prepared
by the Federal Communication Commission: "How to Identify and Resolve Radio-TV
Interference Problems." This booklet is available from the U.S Government Printing
Office, Washington, D.C. 20402, stock no. 004-000-00345-4.

P/N: 363303-05

92 93 23412340

Contents

ABOUT THIS BOOK

1. OVERVIEW OF THE AMIGA 3000

1-1

THE PARTS OF THE A3000 SYSTEM

1-3

THE A3000 DOCUMENTATION

1-8

2. FEATURES OF THE AMIGA 3000

2-1

HARDWARE FEATURES

2-1

68030 Microprocessor

2-1

68881/68882 Numeric Coprocessor

2-2

Hard Disk

2-2

Display Enhancer

2-2

SCSI Controller

2-3

STANDARD AMIGA FEATURES

2-3

Graphical User Interface (GUI) Processing

2-3

Command Line Processing

2-4

Multitasking

2-4

Text-to-Speech Conversion

2-4

Stereo Sound

2-4

AUTOCONFIG

2-5

GRAPHICS CAPABILITIES

2-5

FOR MORE INFORMATION. . .

2-7

3. GETTING STARTED

3-1

ABOUT SOFTWARE

3-1

ABOUT DISKS

3-2

Floppy Disks

3-3

Protecting Floppy Disk Information

3-3

Hard Disks

3-5

ABOUT THE MOUSE

3-5

TURNING ON THE A3000

3-7

Contents

BOOTING THE A3000 3-8

Booting from the Hard Disk Drive 3-8

Booting from the Floppy Disk Drive 3-8
WORKBENCH — THE AMIGA GRAPHICAL

USER INTERFACE 3-9

THE WORKBENCH SCREEN 3-10

Moving the Pointer and Selecting 3-11

About Menus 3-12

Additional Workbench Features 3-13

BACKING UP YOUR ORIGINAL DISKS 3- 14

LOADING PROGRAMS FROM A FLOPPY DISK 3- 1 5

SAVING YOUR WORK 3-15

TURNING OFF THE A3000 3-16

THE A3000 HARD DISK 3- 1 7

Copying Programs to the Hard Disk 3-18

Loading Programs from the Hard Disk 3-18

Saving/Retrieving Hard Disk Files 3-18

Backing up the Hard Disk 3-18

Contents of the Hard Disk 3-19

CARING FOR YOUR A3000 3-20

Cleaning the Mouse 3-21

Taking Care of Floppy Disks 3-23

Contents 3

4. EXPANDING THE AMIGA 3000

4-1

EXPANSION OPTIONS AVAILABLE

4-1

Using Expansion Slots

4-1

Memory Expansion on the Motherboard

4-3

CHIP RAM Expansion

4-3

Video Expansion

4-3

Adding Disk Drives

4-5

Adding SCSI Devices

4-5

PC Emulation with Bridgeboards

4-5

INSTALLING OPTIONS

4-6

Removing the A3000's Cover

4-6

Installing Expansion Cards

4-8

Installing Video Expansion Cards

4-9

Installing Hard and Floppy Disk Drives

4-10

Installing Random Access Memory (RAM) Chips

4-13

FAST Memory

4-14

CHIP Memory

4-18

Connecting Additional SCSI Devices

4-23

APPENDICES

A. TECHNICAL SPECIFICATIONS

A-l

B. INPUT/OUTPUT CONNECTOR PIN

ASSIGNMENTS

B-l

C. USING THE DISPLAY ENHANCER

C-l

D. THE A3000 KEYBOARD

D-l

E. USING THE A3000 INSTALL DISK

E-l

F. A3000 SCHEMATICS

F-l

G. JUMPER SETTINGS

G-l

Overview 1-1

Chapter 1

Overview of the Amiga 3000

The Amiga 3000 (also known as the A3000™) is an extremely
advanced, high-speed personal computer. Incorporating all the
unique features of earlier Amiga computers, the A3000 offers
a high-speed microprocessor, a numeric coprocessor, and
additional input and output features for significantly enhanced
computing speed and versatility. The A3000 is remarkably
sophisticated and powerful, yet it is also affordable and
accessible — even a computer novice can be up and running
with a minimum of effort.

The A3000 is shipped with two types of random access
memory (RAM). This memory includes Fast RAM (memory
available for basic computing functions, such as data
processing), and Chip RAM (memory available primarily for
tasks involving graphics and sound). The A3000 motherboard
can accommodate up to a total of 18 MB of RAM on the
motherboard. The amount of RAM in your machine depends
on the model you have selected.

The A3000 can accommodate up to two megabytes of
Chip RAM. This allows the A3000 to enhance the already
impressive graphics and sound capabilities of earlier Amiga
models.

The A3000 is an open-architecture machine. The A3000
internal expansion slots are upwardly compatible with Amiga
2000 expansion cards (like the Commodore Bridgeboard™ PC
emulation cards), while offering increased performance for new
devices developed specifically for the A3000. These expansion
slots allow a wide variety of specialized circuit cards to be

1-2 Overview

quickly and easily installed in your A3000, adding networking
capability video processing, microprocessor enhancements /
and other resources — all within the main chassis of the
computer. Such cards, available from Commodore and from
many third parties, increase the power of the A3000 without
increasing its desktop footprint.

Many devices commonly considered add-on devices come
standard with the A3000, saving you money and freeing up
valuable expansion slots for other uses. For instance, included
on the A3000 motherboard is a DMA SCSI controller for
managing hard disks and other SCSI devices. The A3000 also
has built-in Display Enhancer circuitry that can produce crisp
screen output in selected graphics modes (this requires a
multiscan-type monitor). This leaves the video expansion slot
available for other video devices, such as an internal genlock or
other graphics cards.

The new ECS (Enhanced Chip Set) circuitry supports two new
video modes: the Productivity mode and the Superhires mode,
available when using AmigaDOS 2.0. (These modes are
described in the Using the System Software manual).

For the technical specifications and detailed technical
information on the A3000, see the appendices to this manual.

Overview

1-3

The Parts of the A3000 System

t*-^

• The Main Unit — Houses the 68030 CPU (central processing
unit) ; the "brain" of the A3000. The main unit also contains:

— memory, processing chips, and specialized components,
including:

- system RAM

- 6888x numeric coprocessor

- sound and graphics chips

- Display Enhancer circuitry
„ - DMA SCSI controller

1-4

Overview

— disk drives, including:

- one hard drive

- one floppy drive

- space for a second drive (hard or floppy)

— expansion slots, for optional internal devices, such as:

- expansion cards for memory, communications, etc.

- PC emulation cards (Bridgeboards)

- special video processing cards, etc.

— external connectors, for optional external peripheral
equipment, such as:

- printers

- modems

- disk drives

- video equipment

- audio equipment, etc.

— power supply and fan

AMIGA

50OO

J I.

i-t

sr-esss:

Overview

1-5

• The Keyboard — Provides
a full typewriter-style
layout, plus a standard
numeric keypad and a set of
program-activated function
keys. The keyboard is used
to communicate
information and instructions
to the computer, and to
respond to messages from
the computer. Many mouse
functions (see below) can be
performed via the keyboard.
The keyboard connects to
the keyboard port on the
right side of the main unit

• The Mouse — Controls the movement of
a small, arrow-shaped pointer on the
display screen. When you move the
mouse over a flat surface like a desk ; the
pointer on the screen moves accordingly.
By clicking on the mouse buttons you can
transmit instructions to the Amiga. The
mouse connects to the front mouse port
on the right side of the main unit.

• Floppy Disks — A circular piece of
magnetically coated material
enclosed in a protective hard plastic
housing. Floppy disks are used to
store information and programs that
tell the computer what to do. Amiga
floppy disks are 3.5 inches across and
can hold approximately 880,000
characters of information.

1-6

Overview

• Floppy Disk Drive(s) —

When a floppy disk is
inserted into the floppy disk
drive, the computer can be
instructed to obtain (read)
information from the disk,
or send (write) information
to it. The standard A3000
includes one floppy disk
drive, located on the front of
the main unit.

• Monitor — Displays
information generated by the
computer's operating system
and your programs. The
monitor may be one of
several types, and may or
may not be included as part
of the Amiga 3000 package,
depending on the country of
purchase. Depending on its
type, the monitor connects
to either the 15 or 23 pin
video port on the back of the
main unit.

• Hard Drive — Stores very large amounts of information
(many times more than a standard floppy disk). Hard drive
capacities will vary, depending on which model of the A3000
you have purchased. The standard A3000 hard drive is
located inside the main unit

• Built-in Clock/Calendar — Maintains the time and date
even when the computer is turned off, via a battery back-up.
The clock/ calendar and battery back-up are located inside
the main unit.

Overview 1-7

• Peripherals — Internal and external peripherals (printers,
modems, disk drives, Bridgeboard PC emulators, genlocks,
etc.) can be added to your Amiga 3000 system. See the
Amiga 3000 Quick-Connect for the basic external A3000
setup and connection instructions. See Chapter 4,
Expanding the Amiga 3000, in this manual for information
on internal expansion options (memory expansion cards,
etc.).

1-8 Overview

The A3000 Documentation

In addition to this manual, the A3000 package includes the
following documentation:

• QUICK CONNECT— How to Set Up the Commodore
Amiga 3000

This is a 6-inch by 9-inch booklet that tells how and where
to connect the A3000 equipment, including optional
devices. The booklet folds out to become a large poster. You
can hang the poster in a convenient spot while you follow
the connection instructions.

• USING THE SYSTEM SOFTWARE

This manual provides comprehensive information on the
Amiga operating system. The manual includes detailed
coverage of the Workbench, the basic user interface for the
Amiga. The manual begins with a tutorial aimed at the new
user. Subsequent sections build on this base, introducing
advanced Workbench features.

This manual also documents AmigaDOS, the operating
system that manages the Amiga's computing resources. The
AmigaDOS material includes a chapter describing the
AmigaDOS text editors, plus a reference section.

Features 2-1

Chapter 2

Features of the Amiga 3000

Hardware Features

68030 Microprocessor

The central processing unit of the A3000 is a Motorola®
68030™ microprocessor, available with clock speeds of either
25 or 16 MHz. (Clock speed, given in MHz, is one measure of
how fast a computer's microprocessor) s) can perform tasks.)

The Motorola 68030 microprocessor vastly increases
processing speed over previous Motorola 68000™ -class
microprocessors in several important ways:

• It has full 32 bit architecture — that is, it reads and writes
data in 32-bit blocks (compared with the 16-bit
architecture of earlier Amiga models).

• Its cache memory allows faster performance, even with
16-bit memory.

• It works directly with the A3000's built-in Floating Point
Unit (Motorola 68881™ or 68882™ numeric coprocessor)
for very fast mathematical calculations.

Except for the difference in speed, the 16 MHz version of the
A3000 has all the advanced features of the 25 MHz version.

2-2 Features

68881/68882 Numeric Coprocessor

The A3000 is also equipped with either a Motorola 68881 or
Motorola 68882 numeric coprocessor, running at a clock speed
of 16 or 25 MHz, respectively (matching the clock speed of the
68030 CPU). The addition of a numeric coprocessor greatly
increases the processing speed for numeric-intensive
applications like graphics, spreadsheets and CAD programs.

Hard Disk

The A3000 comes with a built-in hard disk drive. The hard disk
drive has a storage capacity equivalent to that of dozens of
floppy disks. A hard disk drive stores and retrieves information
much faster than a floppy disk drive.

For information on using the hard disk, refer to the Using the
System Software manual, especially Chapter 6.

Display Enhancer

The A3000 includes special video display circuitry, known
as the Display Enhancer, that offers improved display
capabilities.

The action of the Display Enhancer is software-compatible
with the function of many existing software packages and
internal Amiga plug-in cards, as well as the new Productivity
mode available with the new Enhanced Denise chip and
AmigaDOS 2.0.

Refer to Appendix C for detailed information on the features
and use of the Display Enhancer.

Features 2-3

SCSI Controller

The A3000 has a built-in DMA SCSI (Small Computer System
Interface) Controller that provides a link between the hard disk
and the Amiga, allowing you to boot (start operations) directly
from the hard drive. There is no need to insert a disk into the
floppy disk drive to get the system up and running.

The A3000 has internal and external SCSI connectors for
additional hard disks or other SCSI devices.

Standard Amiga Features

Following are brief descriptions of features that are included in
all Amiga computers. For more details on these features, see
the Using the System Software manual.

Graphical User Interface (GUI) Processing

A Graphical User Interface (GUI) allows you to tell the
computer what to do by selecting graphic symbols (in the form
of icons, or small pictures), rather than having to type in words
or commands. Because the icons are displayed automatically
by the computer, you don't have to memorize a long list of
commands or keystrokes to get the computer to respond
correctly to your instructions. This makes a GUI extremely
easy to use.

Amiga computers provide a versatile GUI known as the
Workbench. For an introduction to the basics of the
Workbench, see Chapter 3 of this manual. For complete details
on the Workbench, refer to the Using the System Software
manual included with your computer.

2-4 Features

Command Line Processing

In command line processing, you type in each command or
instruction to the computer. Although command line
processing is not as simple to use as GUI processing, command
line instructions can be made very precise. Command line
processing can therefore be very useful — even essential — in
advanced processing situations.

Amiga computers offer a highly sophisticated, easy-to-use
command line processing system known as the Shell With the
Amiga's multitasking capabilities, you can open a number of
Shells at one time.

For added versatility the Workbench and Shell work together.
You can load the Workbench using the Shell, and you can call
up the Shell from the Workbench. (See the Using the System
Software manual for details on the Shell.)

Multitasking

Multitasking is the ability of a computer to handle a number of
tasks or programs operating simultaneously. This concurrent
activity does not require any action by the user, and does not
depend on special programming techniques. Multitasking
ability is unique to the Amiga line of computers, when
compared with computers in or near their price ranges.

Text-to-Speech Conversion

The Amiga has the ability to convert text input directly to
speech. There are controls for rate, pitch, volume, inflection,
and even type of voice (male, female, computer). This is
another standard ability that is unique to the Amiga family of
computers.

Stereo Sound

The Amiga has four independent sound channels, configured
as one stereo or two mono channels. The Amiga sound system
can reproduce complex waveforms and can perform 8-bit
digital-to-analog conversions.

Features 2-5

AUTOCONFIC™

All expansion slots are controlled by a feature known as
AUTOCONFIG™, which automatically recognizes an
expansion card installed in the A3000. AUTOCONFIG ensures
that the system is aware of the added capability; the user does
not have to run a special setup program or change hardware
switches.

Graphics Capabilities

This section summarizes the types of screen display that you
can use with your A3000. |The type of screen display is also
referred to as the display mode.) For details on the display
modes available, see Chapter 3 in the Using the System
Software manual.

Changing the display mode changes the number of pixels that
make up the screen. This is also known as the screen
resolution. The higher the number of pixels, the sharper the
image becomes.

The standard Workbench screen that appears when you turn on
(boot) your A3000 is known as a Hires (high-resolution)
interlaced screen. It is 640 pixels wide (left to right). Its height
is determined by your country's video standard: NTSC, the
video standard used in most of North America, parts of Latin
America, and Japan; or PAL, the video standard used in Europe,
Australia, and New Zealand. For an NTSC display, a Hires
interlaced screen is 400 pixels high (top to bottom); for a PAL
display it is 512 pixels high.

2-6

Features

Certain software, like desktop publishing, or CAD/CAM
programs, require this higher resolution in order to present the
information clearly. For instance, if a desktop publishing
program is used in a low-resolution screen (320 x 200/256
pixels), the text will not be clearly defined — circular letters
may have jagged edges or portions of letters may appear to be
missing. You will not be able to see a true representation of
your page. However, the same page on an Amiga Hires-
interlaced screen (640 x 400/512 pixels) will be sharp and crisp.
It will more closely resemble the printed output.

The display modes available to you may depend upon the type
of monitor you are using. Interlaced screens may flicker when
used with certain monitors. The A3000's built-in Display
Enhancer is designed to eliminate the flicker (when used with
a multiscan monitor).

The following chart lists the display modes, the hardware
needed to use that mode, and the standard screen sizes.

Standard

Maximum

Graphics

Special

Screen Size

Number

Display Mode

Requirements

[Pixels)

of Colors

Hires

640 x 200/256

Hires Interlaced

640x400/512

SuperHires

1280x200/256

SuperHires

1280x400/512

Interlaced

Productivity

Multiscan
monitor

640 x 480

Productivity

Multiscan

640 x 960

Interlaced

monitor

A2024/10Hz

A2024 monitor

1008 x 800/1024

4 shades of grey

A2024/15Hz

A2024 monitor

1008 x 800/1024

4 shades of grey

Note that the display mode you choose only pertains to the
Workbench screen. (See Chapter 3 in this manual and the
Workbench chapters in the Using the System Software manual
for information on the Workbench.) If your software
application opens its own screen, you should check the
documentation for the application to see which display modes
the application supports.

Features 2-7

Your Amiga 3000 additionally supports the following display
modes, which are not used by Workbench but which are
available to applications which open their own screens.

Graphics

Standard Screen Size

Maximum Number

Display Mode

(Pixels)

of Colors

Lores

320 x 200/256

Lores Interlaced

320x400/512

HAM

320 x 200/256

4096

HAM Interlaced

320x400/512

4096

For More Information . . .

The features briefly noted in this chapter have been selected to
show the A3000's wide range of capabilities. Refer to the
appendices of this manual for more information on A3000
hardware features. Refer to the Using the System Software
manual for more information on Amiga software features.

Getting Started 3-1

Chapter 3
Getting Started

This section introduces the basics for using your A3000.

For full details on using your A3000, you should read the Using
the System Software manual packaged with your computer.
This manual provides complete information on the
Workbench; which is the graphical user interface for users
who are new to the Amiga. The Using the System Software
manual includes step-by-step tutorials on each feature of the
Workbench. You will of course have to follow the instructions
given in the user's manual for each program that you want
to use.

NOTE: As a result of Commodore-Amiga's ongoing
product improvement program, the displays shown in
this manual may differ slightly from those that appear
on your monitor.

About Software

Software is a set of instructions (often called a program) that
tells your computer what to do. There are many kinds of
software, including:

• application programs, such as word processors, video
titlers, spreadsheets, databases, games, drawing programs,
music programs, etc.

• programming languages, such as C, AREXX, etc.

3-2 Getting Started

• utilities, such as file management programs or font editors

• operating systems, such as AmigaDOS® which controls
how your Amiga interacts with you and with the
equipment in your system

Software is contained on some form of storage medium, most
often a floppy disk or a hard disk. For those new to computing
in general or to Amiga computing in particular, the next
section provides an introduction to floppy and hard disks.

About Disks

There are two main types of computer disks: floppy disks and
hard disks. Floppy disks offer low cost and transportability.
Hard disks offer high speed and relatively large storage
capacity

Information on disks is stored magnetically in somewhat the
same way that sound is recorded on audio tape. You can copy
the information on a disk to another floppy disk or hard disk,
or to other storage media (e.g., tape).

A computer can include both floppy drives and hard disk
drives, as well as other storage devices, such as a tape unit.
Your A3000 includes at least one floppy disk drive and one hard
drive. Additional floppy disk drives are available from
Commodore and third party manufacturers as internal or
external add-on peripherals. Additional hard disk drives are
available from third party manufacturers as internal or external
add-on peripherals.

Getting Started 3-3

Floppy Disks

Floppy disks are sheets of magnetically coated material
enclosed in a square protective cover. In order for the computer
to read (retrieve) information from a disk or to write (save)
information to a disk, you must insert the disk in a floppy disk
drive.

The 3.5 inch floppy disks used with the A3000 have a rigid
plastic shell and a metal cover (known as a shutter) for
protection against damage, fingerprints, etc. Each Amiga 3.5
inch floppy disk holds 880 kilobytes (abbreviated 880K) of data.
This is roughly equivalent to 400 typewritten pages.

Protecting Floppy Disk Information

Note the small plastic tab on the back of each floppy disk. This
is known as a write-protect tab. When you receive your A3000,
the tab on each disk should be in the upper position (i.e., at the
top edge of the disk). This position is known as the write-
inhibit position. When the tab is in this position, you should
be able to see through a small hole in the plastic disk cover.

With the tab in this position, you can read (that is, retrieve)
the information on the disk, but you cannot write to the disk
(that is, you cannot change the information or add new
information).

If you want to write to the disk, simply move the tab down
(i.e., toward the middle of the disk), so that it covers the hole.
This position is known as the write-enable position.

3-4

Getting Started

wrtte-lnhlbit position

back of 3.5 inch disk

shutter

write-enable position

Although the disk housing is relatively sturdy, you should
follow certain rules in handling the disks. For a list of these
rules, see the Caring for Your Amiga section at the end of this
chapter.

IMPORTANT; In addition to the 3.5 inch Amiga disks
packaged with your computer, you should always have
some blank 3.5 inch floppy disks ready. (You can get
blank disks from various sources — your Amiga dealer,
computer stores, office supply stores, etc.). Use only
double-sided, double-density disks.

Getting Started 3-5

Chapter 1 of the Using the System Software manual tells how
to copy the information from the original Amiga disks onto
blank disks. This is important because it will allow you to
work with the copies (known as working disks) and keep the
originals in a safe place. You can use the originals to make new
backups if the first copies become damaged in any way

Hard Disks

Hard disks typically hold from 10 megabytes to hundreds of
megabytes of data (the upper limit for storage capacity is being
raised continually). A hard disk is enclosed in a sealed housing.
Information moves to and from the hard disk electronically —
the disk is never touched by the user.

The A3000 includes an internal hard disk, located in a bay at
the center rear of the main unit.

See The A3000 Hard Disk section later in this chapter and
Chapter 6 in the Using the System Software manual for
more information on the hard disk.

About the Mouse

While working with your computer you will generally be using
the mouse. The mouse controls the movement of a small,
arrow-shaped pointer on the display screen. When you move
the mouse over a flat surface like a desk or table top, the
pointer on the screen moves in the same direction as the
mouse.

3-6

Getting Started

There are two buttons on the mouse. The left mouse button is
called the selection button; the right button is called the menu
button. These terms are explained later in this section.

menu
button

selection
button

mouse

For details on caring for the mouse, see the Caring for Your
Amiga section at the end of this chapter.

NOTE: The descriptions in this chapter and through-
out the rest of this manual assume that you are using a
mouse. However, there are certain keys on the keyboard
that you can use in place of the mouse. For details,
see Chapter 2 in the I/sing the System Software manual.

Getting Started

3-7

Turning On the A3000

NOTE: Before you turn on your A3000, be sure that
you have correctly installed and connected all the
equipment in your A3000 system. See the Amiga 3000
Quick Connect for instructions on connecting
equipment to your computet

First, turn on the monitor and any other equipment attached
to your A3000. (See your equipment manuals for further
information.)

power light

power switch

Next, press the power switch located on the upper right front of
the A3000. The power light on the left front of the A3000 will
light up.

3-8 Getting Started

Booting the A3000

The process of starting a computer is often referred to as
booting the computer. The Amiga 3000 can be booted from
either the hard or floppy disk drive.

Booting from the Hard Disk Drive

The A3000 is set to automatically boot the Amiga from the
hard disk. Simply turn on the computer and in a short time
the Workbench screen appears on your monitor. (For an
introduction to the Workbench screen, see pages 3-10 through

3-14.)

Booting from the Floppy Disk Drive

You can also boot the A3000 from the floppy drive. To do this,
BEFORE you turn on the A3000, insert the Workbench or a
bootable program disk in Drive DFO:. (This is the A3000's
internal floppy disk drive. If you have two internal floppy
drives, DFO: is the drive on the right.) If the A3000 finds a
bootable floppy disk in Drive DFO:, the computer will boot
from that disk rather than the hard disk.

For details on booting from a floppy disk, see Chapter 1 of the
Using the System Software manual.

Getting Started 3-9

Workbench — The Amiga Graphical
User Interface

An easy way for users to operate a computer is through a
Graphical User Interface (GUI), which is a pictorially oriented
system. When working with a typical GUI, you use a mouse to
move an arrow-shaped symbol called a pointer around the
monitor screen. The pointer is used to select icons, which are
small pictures that identify items such as files or functions.

In some cases the selection involves a menu, which is a list of
options from which you can pick the item or function you
want.

The process may also involve one or more windows, which are
special areas of the screen that can accept and/or display
information.

The Amiga provides a powerful GUI known as the Workbench.
The Workbench combines the mouse, pointer, icons, menus
and windows with its own special Amiga tools. The result is
sophisticated computing power right at your fingertips, in a
very easy-to-use package.

3-10 Getting Started

The Workbench Screen

NOTE: This section provides a brief introduction to
the Workbench screen* For complete information,
including tutorials, on all elements of the Workbench,
see Chapters 1 through 6 of the Using the System
Software manual.

965976 graphics nen 979544 other nen

icons

window

3<s>id

Getting Started 3-11

Notice the title bar at the top of the screen. This identifies the
screen as the Workbench. On the Workbench are several icons
(small pictures or symbols). The icons on the screen represent
the currently available A3000 storage devices (hard disk, floppy
disk, RAM disk, etc.). To learn all about these icons, see the
Using the System Software manual.

Moving the Pointer and Selecting

The small arrow on the screen is known as the pointer. You use
the mouse to move the pointer to select items on the screen.

If, while you are moving the mouse, you run out of desk space
and your pointer still is not where you want it to be, just lift
the mouse off the desk and put it down where there is room.
Lifting the mouse does not move the pointer.

NOTE: The size and shape of the pointer, as well as the
rate at which it moves, can be changed. See the Using
the System Software manual for details.

As noted previously, icons are used to represent various Amiga
items, such as files, drawers and tools. When you want to use
an icon, you must move the pointer to that icon and select it.

To perform the selection function, you use the left button on
the mouse. For this reason, the left mouse button is known as
the selection button.

As an example, use the mouse to move the pointer to the Work
icon. Then click (press) twice on the selection (left) button.
(This action is known as double clicking.) Be sure to press the
button twice in rapid succession.

3-12 Getting Started

Notice that the Woik icon is highlighted at the first press of the
mouse button. This indicates that the icon has been selected.
After the second press of the left button, the Work window will
appear.

Sometimes when you double-click on an icon, the pointer
changes shape and becomes a Wait pointer.

wait pointer

When you see this pointer, it means that the Workbench is
busy doing what you asked it to do. When the pointer returns
to its original shape, you can continue working.

ART

If you decide you no longer want an icon selected, move the
pointer to any location on the Workbench screen that is not
occupied. Then click once on the selection (left) button.

About Menus

Menus provide a list of the choices available to you. To make a
choice from a menu, you use the light mouse button. For this
reason, the right mouse button is known as the menu button.

Holding down the menu (right) button causes a menu bar to
appear across the top of the screen. The menu bar shows the
headings of any menus that are available to you.

Getting Started 3-13

menu bar

NOTE: For full details on selecting icons and using
menus, see the Using the System Software manual.

Additional Workbench Features

There are many special features available on the Amiga to
ensure peak performance. For example; since the Amiga is a
multitasking system, it is possible to open a number of
windows and have a variety of programs running at the same
time. This can put a premium on screen space. The Workbench
therefore provides ways to manage the screen output and
functions for optimum results.

You may have noticed the gadgets — the small symbols in the
border and corner areas of windows. These gadgets allow you
to customize the size, position, and other characteristics of
windows shown on the Workbench screen.

-t

3-14 Getting Started

For example, you can use gadgets to move windows by a
process known as dragging. To drag a window, point to its title
bar, hold down the selection button, and move the mouse. The
window is repositioned at whatever point you release the
selection button.

You can position one window in front of or behind another. You
can also scroll the contents of a window when the window
holds too many items to be displayed at one time.

For detailed instructions on using all the Workbench features,
including the gadgets, see the Using the System Software
manual.

Backing Up Your Original Disks

Before you do anything else with your A3000, you should
BACK UP (that is, make a copy of) your floppy disks. By

backing up your floppy disks, you will ensure that even if a
disk is lost or damaged you will still have a copy of it.

For step-by-step instructions on how to copy floppy disks, refer
to Chapter 1 of the Using the System Software manual.

When you've made a copy of a disk, put the original in a safe
place and use the copy called a working disk, for everyday use.
If you lose or damage a working disk, you'll always be able to
make another working disk from the original.

Getting Started 3-15

Loading Programs
from a Floppy Disk

In order to use a program on your A3000, the program must
first be placed into the memory of the computer. This is often
referred to as loading the program.

The method you use to load programs from a floppy disk
depends on the software you are using. In some cases the
program disk contains not only the program itself, but also the
files required to boot the A3000 and perhaps a routine that
allows you to copy the program to a hard disk. To load a
program properly, be sure to follow the loading instructions
included with the software package you are using.

When you are loading a program from a floppy disk, the light
on the disk drive will come on, indicating that the disk drive is
active. DO NOT ATTEMPT TO INSERT OR REMOVE A
FLOPPY DISK WHILE THE DRIVE ACTIVITY LIGHT IS ON.
Once the program is loaded, follow the operating instructions
supplied in the software documentation.

Refer to the Using the System Software manual for detailed
instructions on how to load and run programs.

hard disk drive
activity light

floppy disk drive activity light

3-16 Getting Started

Saving Your Work

Most software has a specific procedure for saving your work.
For exact instructions on saving your work, see the user's
manual for the application software you are using.

Turning Off the A3000

When you finish a computing session and want to turn off the
A3000, first save any work that you want to keep. Next,
remove any disk(s) from the floppy drive(s). Then press the
power switch on the right front of the A3000. The power light
on the left front of the A3000 will go out. Turn off the monitor
and any peripherals.

WARNING!

• DO NOT TURN OFF THE A3000 OR REMOVE
A DISK FROM A DRIVE IF ITS FLOPPY DISK
DRIVE ACTIVITY LIGHT IS ON.

• WAIT AT LEAST 5 SECONDS AFTER THE HARD
DISK ACTIVITY LIGHT GOES OUT BEFORE
TURNING OFF YOUR A3000.

IMPORTANT: Turning off or rebooting the computer
erases whatever is in the memory of the computer, so
be sure to save your work before you use these
procedures. See the Using the System Software
manual for details on saving and rebooting.

Getting Started 3-17

The A3000 Hard Disk

Your A3000 comes with a built-in hard disk. The hard disk has
a storage capacity equivalent to that of dozens of floppy disks.
The hard disk allows faster storage and retrieval of information
than a floppy disk.

Following is general information about the hard disk. For
specific instructions on hard disk use, see the Using the
System Software manual, especially Chapter 6.

Foimatting prepares the disk to receive data in a form
compatible with the Amiga's operating system. The A3000
hard disk has already been formatted at the factory. If you
install another hard disk, that disk must be formatted by you
or your dealer.

Copying Programs to the Hard Disk

The Workbench2.0 and Extras software have been factory-
installed on the A3000 hard disk. You will also want to transfer
other programs to your hard disk. The documentation for many
programs that you purchase will tell you how to do this. If a
program lacks such documentation, see the Using the System
Software manual for copying instructions. The System
Software manual also gives complete instructions on how to
perform all file handling procedures, such as moving a file,
combining one file with another one, deleting a file, etc.

3-18 Getting Started

Loading Programs from the Hard Disk

If the floppy disk for a program is not copy-protected (that is, if
the originator has not made it impossible for a copy to be made
using standard copying procedures), you can copy the program
to the hard disk. You will then be able to load and run the
program from the hard disk, usually much faster than you
could do from a floppy disk.

Saving/Retrieving Hard Disk Files

You can save files to and retrieve files from the hard disk as you
would a floppy disk. See the Using the System Software
manual for instructions on how to save and retrieve hard disk
files.

Backing Up the Hard Disk

The information on a disk (hard or floppy) may be damaged or
destroyed by a hardware or software failure. To ensure that you
have a copy of your important programs and files, you should
back up your floppy and hard disks. Since a hard disk can store
large amounts of information, it is especially important that
you back up the hard disk periodically

Special software is included with your A3000 computer to
allow you to back up the hard disk by copying the information
stored on the hard disk to another storage medium like floppy
disks or an optional streaming tape drive. See Chapter 6 and
Appendix C in the Using the System Software manual for
information on hard disk backup procedures.

Getting Started 3-19

You should back up the hard drive frequently — daily or
weekly depending on how often the information is used and
how important the information is. Without a backup copy it
will be impossible for you to replace any files that may be lost
due to user error, or to system or hard disk failure.

Contents of the Hard Disk

A hard disk's storage area can be divided into a number of
partitions, or subdivisions. As shown in the Workbench screen
on page 3-10, the A3000 hard disk has two partitions: Work and
System2.0. The Work partition is empty when you receive your
A3000. You can use this partition to store your programs and
files. The System2.0 partition includes a copy of the
Workbench software you use in working with the A3000, the
startup files that tell the computer how the system is to be set
up, directories and files that are on the Workbench and Extras
floppy disks, plus various other software, such as utilities.

'"IMPORTANT***

For complete information on using the hard disk,
including how to use the backup software, refer to the
Using the System Software manual.

3-20 Getting Started

Caring for Your Amiga

Your Amiga needs very little care to keep it working at its best.
Observe the following precautions to keep your Amiga in top
shape.

• Keep the Amiga dry. Keep liquids away from the Amiga.
An accidental spill can seriously damage disks or the
Amiga itself.

• Keep the Amiga out of temperature extremes. Working
temperature range is to 45°C (32 to 113°F). Storage
temperature range is to 60°C (32 to 140°F|. If the system
experiences excessive heat or cold, the Amiga may not
function reliably.

• Keep connectors and the ends of cables clean. Any
substance that adheres to connectors or the ends of cables
can prevent a good electrical connection or damage the
connector.

• Keep magnets away from the monitor, and all other
components of the computer setup. Although magnets
won't damage the monitor, they can distort the video
display and they can damage disks. In addition to more
obvious magnets, beware of magnets in telephones,
electronics equipment (especially loudspeakers), and
electric motors.

• Do not attempt to service your Amiga yourself. If your
Amiga needs service, take it to an authorized Amiga
Service Center. Attempting to service the computer on
your own will void the warranty on your Amiga.

Getting Started 3-21

Cleaning the Mouse

Use the mouse on a clean surface. The ball on the bottom of
the mouse must be clean to work properly. If the mouse
behaves erratically, it may need cleaning.

To clean the mouse, you will need:

• a soft, dry, lint-free cloth

• alcohol, or head cleaning fluid for tape recorders

• cotton swabs

Here's how to clean the mouse:

• Turn the mouse upside down with its cable toward you.
Hold the mouse in both hands and put your thumbs on the
ridged panels on either side of the ball.

• With your thumbs, firmly turn the ball cover to the open
position. With the mouse upside down, lift off the cover.

3-22 Getting Started

• Put your hand over the opening, turn the mouse right side
up, and catch the ball.

• In the opening, you will see small rollers. Moisten a
cotton swab with isopropyl alcohol or tape head cleaning
fluid and gently swab the surface of each roller. Turn each
roller as you swab to clean it all the way around.

Getting Started 3-23

• Use the cloth to wipe off the mouse ball. (Do not use any
liquid when cleaning the mouse ball.) When you are done,
blow gently into the opening to remove any dust, replace
the ball, and replace the cover for the ball.

Taking Care of Floppy Disks

To protect the information on your floppy disks, observe these
precautions:

• Make copies (working disks) of important disks. Work
with the copies and keep the originals in a safe place for
use as backups if the copies become damaged. See the
Using the System Software manual for details on copying
disks.

• Never remove a disk from a drive when the drive light is
on. The disk drive light tells you that the Amiga is using
a disk.

• Don't touch the surface of the disk The metal shutter on
a floppy disk closes automatically whenever you remove
the disk from a disk drive. Do not touch the surface of the
disk underneath the cover.

• Keep disks away from magnets. Disks store information
magnetically. Magnets can ruin the information on a disk.

• Keep disks away from extreme heat or cold. Do not leave
disks in direct sunlight, near heat sources, or in cars
parked in the sun.

Expansion 4-1

Chapter 4

Expanding the Amiga 3000

This chapter summarizes the expansion options available with
the A3000 and provides general illustrations showing how
these options can be installed in the A3000 chassis. For
detailed information see the user's manual for the option you
are installing.

Expansion Options Available

There is a large and continually growing list of options you can
choose from to take advantage of the extensive expansion
capabilities of the A3000.

Using Expansion Slots

There are four 100-pin Amiga bus expansion slots, one 200-pin
Fast slot, one video expansion slot, and two 86-pin PC/AT™
slots. All slots except the Fast slot are located on the
daughterboard, which is perpendicular to the A3000
motherboard. Two of the 100-pin Amiga slots are in line with
PC/AT slots.

The 100-pin expansion slots are compatible with A2000
expansion cards (ZORRO II cards], while offering increased
performance for new devices developed specifically for the
A3000 (ZORRO III cards). These slots can accept a variety of
options, including video digitizers, audio samplers, multiport
I/O boards, etc. — all within the main chassis of the computer.
Such options, available from Commodore and from many third
parties, increase the power of your A3000 without increasing
its desktop footprint.

4-2

Expansion

The Fast slot on the local 68030 bus can be used for future
expansion, such as a Motorola 68040 microprocessor or other
high-performance options.

power supply

hard disk drive

floppy disk drive

mounting tray for optional
3.5 inch device

video

cover

equipment
platform

(FAST RAM and

FAST SLOT on

motherboard,

underneath

equipment

platform)

daughterboard
(backplane)

available

CHIP RAM

expansion

sockets

Amiga 100-pin
expansion slots

populated

CHIP RAM

sockets

Expansion 4-3

Memory Expansion on the Motherboard

Two types of chips may be used, allowing a maximum of either
6 MB or 18 MB of memory on the motherboard. All this RAM
can be directly addressed by the operating system. Because no
paging or other time-consuming RAM accessing scheme is
required, processing speed is increased.

Chip RAM Expansion

The A3000 comes with one megabyte of Chip RAM (also
known as graphics RAM), out of the total of two megabytes
of system RAM on the motherboard. You can add another
megabyte of Chip RAM by having an authorized Amiga service
center install additional chips into the sockets provided on the
motherboard.

Video Expansion

The A3000 provides a video expansion slot for internal video
expansion, such as a television encoder or a genlock interface.
Using this slot keeps all video circuitry in the metal housing of
the A3000's main unit, helping to minimize RF problems.

The video slot is located at the top of the daughterboard, in line
with a standard Amiga bus expansion slot. This allows a video
expansion card to be designed to incorporate, or be easily
connected to, a standard Amiga expansion card.

Genlocks can be connected to the A3000, either internally (via
the video slot) or externally. This provides a cost-effective way
to add sophisticated Amiga computer graphics, special effects
and titles to video output, videotapes, etc.

4-4 Expansion

The analog RGB output of the A3000 directly supports
encoders and genlocks. These optional devices allow the
A3000 to conform to television standards (either the European
PAL or North American NTSC). This means that the A3000
can be connected to standard video equipment, including
monitor and projection type television displays. With the
exception of the genlock or encoder itself and possibly the
cabling, no special equipment is needed. The A3000 can also
work in conjunction with television studio equipment for a
wide variety of tasks, such as paintbox graphics, character
generation, and animation.

Adding Disk Drives

The A3000 has internal mounting bays for three 3. 5 -inch
drives. Two bays have external and internal access, while one
bay has internal access only. In the standard A3000, two bays
are occupied: one by a floppy drive and one by a hard drive.

A floppy drive can also be added externally, using the floppy
disk connector on the rear of the main unit.

Adding SCSI Devices

The A3000's built-in DMA SCSI controller allows the
connection of up to seven SCSI devices, including hard drives,
scanners, tape units, CD-ROMs, etc. There are internal and
external SCSI connectors.

Expansion 4-5

PC Emulation With Bridgeboards

Commodore produces a line of PC emulator cards known
as Bridgeboards. Each Bridgeboard is a fully functional PC that
includes its own microprocessor and the circuitry needed to
interface between the PC and Amiga systems. Since the Amiga
has multitasking capability, the Bridgeboard can run
concurrently with Amiga programs. The Amiga emulates
CGA/MDA types of PC displays in a window on the Amiga
monitor.

The Bridgeboard/ Amiga hybrid architecture may be used for
applications where the PC system functions as a coprocessor.
The dual-port RAM provides the path for the communications
between the two systems. There is full access to the complete
range of PC compatible add-ons. You can also set up the A3000
hard disk drive for use by both MS-DOS and AmigaDOS.

A Bridgeboard can be installed in one of the two PC/AT-
compatible expansion slots on the Amiga daughterboard. The
other PC/AT-compatible slot can then be used for a PC card
(e.g., a video card). With a Bridgeboard installed, the A3000 can
run MS-DOS (or other PC-compatible operating systems) and
popular MS-DOS compatible software packages.

4-6 Expansion

Installing Options

CAUTION: Before any internal expansion device is
installed; the A3000 must first be turned off and
disconnected from the power receptacle. All cables for
peripherals should be disconnected from the A3000.

This section gives general information on installing options for
the A3000. It is assumed that installing an option inside the
A3000 always includes:

1. Turning off the A3000 and disconnecting it from the power
socket. Failure to do so could endanger both you and your
computer.

2. Removing the A3000 ; s cover.

3. Reassembling the A3000 and replacing the cover.

Removing the A3000's Cover

To remove the A3000's cover, remove the two screws on the
lower left side of the A3000. Remove the two screws on the
lower right side of the A3000. Remove the center screw from
the rear of the A3000. Put the screws aside.

Expansion

4-7

Turn the A3000 so that you are facing the front of the machine.
Grasp the cover on both sides and slide it towards you.

If the cover seems stuck, do not force it. Look under the cover
to see if any wires or cables are caught on the cover. If anything
is caught, gently untangle it, and continue to slide the cover
off.

Removing the Cover

cover screws

4-8

Expansion

Installing Expansion Cards

Expansion cards are installed on the daughterboard.

daughterboard (backplane)

\
video slot

PC-AT slots

Amiga
slots

Installing Expansion Cards

1 . Remove cover plate if access
from outside the machine is
required (for I/O ports, etc.)

2. Insert card in selected slot.
Make sure that the card is in
the proper card guide in the
front of the A3000, and that
the appropriate edge card
connectors are aligned
correctly. Press firmly; but do
not use excessive force.

3. Reinstall the cover plate
screw to hold the card in
place.

cover plate

S?5^y

^*7X^;X^

100 pin slot

edge card connector
card guide

expansion card

Expansion

4-9

Installing Video Expansion Cards

A video card is installed in the video slot at the top of the
daughterboard.

Installing Video Cards

1. Remove screw from cover
plate.

2. Lift off cover plate.

3. Unscrew adapter strip from
cover plate and attach cover
plate to video card.

4. Insert video board in
appropriate side of video slot
on daughterboard.

cover plate

adapter strip

4-10 Expansion

Installing Hard and Floppy Disk Drives

There is space in the A3000 expansion bay on the right side of
the chassis for three 3.5 inch drives. The standard A3000 as
shipped has a 3.5 inch floppy drive mounted in the left front
bay and a 3.5 inch hard disk mounted in the rear drive bay just
behind the floppy drive. You can install another 3.5 inch floppy
or hard drive in the bay next to the floppy drive. You can also
replace the original hard drive if you wish.

The following are general comments on installing an
expansion device (e.g., a drive) in the expansion bay. For more
specific instructions see the user's manual for the expansion
item being installed.

If a hard drive with a faceplate is to be mounted in one of the
front bays you will need to remove the faceplate.

There are two ribbon cables that connect the drives to the
motherboard. The wider cable (50 pins) is used for the hard
drive and other SCSI devices. The narrower cable is used for
floppy disk drives. Each ribbon cable has two connectors.
There are also power cables used to connect the drives to the
power supply. Note the orientation of the power cables and
ribbon cables of the standard drives before disconnecting the
cables from the drives.

Note the slots in the equipment platform. The brackets on the
device mounting plates fit into these slots. When installing a
device, make sure the mounting brackets on the plate go
through the slots in the equipment platform.

Connect the appropriate ribbon cable to the device. Make sure
that the cable is aligned properly and that pin 1 on the ribbon
cable is aligned with pin 1 on the device connector.

Connect the device to the A3000's power supply. Locate the
wires running from the power supply. Attach one of the power
connectors to the device's power connector. The power
connector is shaped so that it can fit only one way.

Expansion 4-11

Reassemble the computer components and replace the cover.
Reconnect whatever equipment has been disconnected.

Removing/Installing a
Floppy Disk Drive

1. Remove front screw.

2. Lift drive from equipment
platform.

3. Disconnect power
connector.

4. Disconnect ribbon cable.

5. Remove mounting plate
screws.

6. Lift off mounting plate.
NOTE: To install a drive, reverse
these steps.

NOTE: To install a second floppy drive, first move the original
floppy drive to the drive bay on the right side of the chassis.
(Remove the bezel to permit access to the drive.) Install the
second floppy drive in the left bay. Move Jumper f351 on the
motherboard.

1-12 Expansion

Removing/Installing a Hard
Disk Drive

1 . Remove front screw.

2. Lift drive from equipment
platform.

3. Disconnect power
connector.

4. Disconnect ribbon cable.

5. Remove mounting plate
screws and lift off mounting
plate.

NOTE: To install a drive, reverse
steps 1 through 5. Then adjust
jumper settings on the hard disk
to provide a unique SCSI address.

Also, if both internal and external add-on
SCSI devices are present, the termination
resistor packs must be removed from the
original hard disk for proper SCSI
operation.

Expansion 4-13

Installing Random Access Memory (RAM) Chips

Sockets are provided on the motherboard to allow the user to
increase the amount of memory in two of the A3000's memory
subsystems — Fast memory and Chip (graphics) memory. To
increase Fast memory, memory can also be added via ZORRO
II/III expansion cards. However, the Fast memory system
provided on the motherboard allows expansion while leaving
the expansion slots available for other devices. It is therefore
recommended that RAM be expanded via the sockets provided
on the motherboard in order to ensure maximum system
expandability.

WARNING: Installation of RAM chips should be
performed by an authorized Commodore- Amiga
Service Center, or by your Commodore-Amiga dealer.
Commodore- Amiga will not be responsible or liable for
any damages caused by improper installation of RAM
chips.

CAUTION: If the A3000 is connected to a power
outlet, the power must be turned off and all cables and
peripherals must be disconnected from the A3000,
before the A3000 case is opened.

RAM chips are sensitive to static electricity. Contact with a
chip when high levels of static electricity are present could
ruin a chip. Touching a nearby grounded metal surface before
touching the chip can help reduce static levels.

In general, the following steps are required to install RAM
chips:

1. Disconnect the A3000 from power.

2. Remove the cover of the A3000.

4-14 Expansion

3. If adding Fast RAM, remove the equipment platform and
disconnect the power harness and equipment cables from
the motherboard for whatever equipment is installed on the
platform.

4. Insert the RAM chips.

5. Adjust the RAM size jumper (if necessary).

6. Reassemble the A3000 and reconnect all equipment.

7. Check that the A3000 recognizes the new memory
at power up.

Fast Memory

Fast memory (also known as Fast RAM) is non-Chip memory
that resides on the local 32-bit 68030 processor bus. This
memory is generally used for program code execution. The Fast
RAM is tightly coupled to the 68030 via custom circuitry that
has been designed to provide very efficient operation. This
allows programs to execute very quickly from this RAM.

The standard A3000 is shipped with 1 megabyte of Fast RAM.
(Other models may provide more RAM.) The organization of
the RAM chips is 256K x 4. A total of 32 RAM chips can be
installed in the Fast RAM section. Using 256K x 4 DRAMS,
this results in a total of 4 megabytes of Fast RAM, The A3000
also supports the use of DRAMs organized as 1 megabit x 4
(1M x 4). If all 3ft of the RAM locations are populated with 1M
x 4 DRAMs, the total amount of Fast RAM is 16 megabytes.

WARNING: 256K x 4 and 1M x 4 DRAMs CANNOT
be intermixed in the Fast RAM section! If the first
bank has 256K x 4 DRAMs, then subsequent banks
must have 256K x 4 DRAMs as well. If the first bank
has 1M x 4 DRAMs, then the other banks also must
have 1M x 4 DRAMs.

Expansion 4-15

There are four banks of Fast memory that can be filled. Each
bank consists of 8 RAM chips. Using 256K x 4 DRAMs ; each
bank adds 1 megabyte. With 1M x 4 DRAMs, each bank adds
4 megabytes. Bank consists of locations labeled as U850-
U857 ; bank 1 U858-U865, bank 2 U866-U873 and bank 3
U874-U881. Fast RAM MUST begin in bank 0, and is added to
banks 1 through 3 in sequence.

The Fast RAM section of the motherboard is shown in the
illustration on page 4-22. This section consists of 8 20-pin DIP
sockets (U850D-U857D), as well as 32 20-pin ZIP sockets
(U850-U881). As stated earlier, a maximum of 32 of these
locations may be populated with RAM chips. The 8 DIP
locations and the 8 lowest numbered ZIP locations are
electrically equivalent (both are bank 0). RAM chips can be
installed in either the DIP section OR the first bank in the
ZIP section, but not both.

Two types of RAM sockets (DIP and ZIP] are provided for RAM
bank to allow for greater flexibility in arranging the RAM to
suit your needs. The 1 megabyte of Fast RAM that is shipped in
the A3000 is supplied in the form of DIP DRAMs in locations
labeled as U850D through U857D. This allows the RAM chips
from these sockets to be removed and added to the Chip RAM
section of the board (Chip RAM accepts only DIP DRAMs) if
you purchase more Fast RAM.

Expansion

In the Fast RAM section, the use of static column mode
DRAMs allows for improved system performance. It is
therefore recommended that this type of DRAM be used when
upgrading the system. In order to take advantage of static
column mode DRAMs, ALL of the Fast RAM must be static
column mode DRAMs.

NOTE: Static Column and Page Mode RAM
should not be mixed in the Fast RAM section. The
1MB DIP-package RAM supplied in the standard
configuration may be either type, depending on
availability at the time your A3000 was
assembled.

There is one jumper (J852) that is associated with the Fast
RAM. When using 256K x 4 DRAMs, pins 2 and 3 of this
jumper should be connected. If the Fast RAM section contains
only 1M x 4 DRAMs, then pins 1 and 2 should be connected.

J852 setting for
256K x 4 DRAMs

J852 setting for
1Mx4DRAMs

If the new RAM is functioning properly it will automatically
be recognized by the operating system when the A3000 is
powered up. The title bar of the Workbench screen (which
shows how much "other" memory is available to the system)

Expansion 4-17

should indicate the addition of the new memory. If this
number does not reflect the expected amount of Fast RAM,
then there is a problem. Check that the RAM chips were
inserted properly, and check for any bent pins. (Note that
installing a memory chip backwards may very likely destroy
the chip.)

The following is a list of required parameters for the new Fast
RAM:

Organization: 256 kilobits by 4 bits (256K x 4)

1 megabit by 4 bits (1M x 4)
Speed: 80 nanoseconds or less

Type: page or static column mode

Package: 20-pin DIP (Bank 0, U850D-U857D

only)

20-pin ZIP

The following are examples of acceptable DRAMs:

256K x 4 Page Mode

TOSHIBA TC5 14256
OKI MSM5 14256

HITACHI HM5 14256
NEC ^PD424256

256K x 4 Static Column Mode

TOSHIBA

TC5 14258

SHARP

LH64258

OKI

MSM5 14258

HITACHI

HM5 14258

NEC

^PD424258

TMS44C258

1M x 4 Page Mode

TOSHIBA TC5 14400
HITACHI HM5 14400
NEC |xPD424400

OKI MSM5 14400

1M x 4 Static Column Mode

TOSHIBA TC5 14402

OKI MSM5 14402

4-18 Expansion

The RAM part numbers listed DO NOT include the package
type information (ZIP or DIP). Therefore, you must specify the
package type you want when ordering these DRAMs (package
types will be suffixes to the part numbers listed).

Here are some examples of the options available when adding
Fast RAM:

1. Leave the DIP DRAMs in bank and add additional
256K x 4 ZIP DRAMs in banks 1 through 3.

2. Move the DIP DRAMs in bank to the CHIP RAM section
and add additional 256K x 4 ZIP DRAMs in banks
through 3.

3. Move the DIP DRAMs in bank to the CHIP RAM section
and add 1M x 4 ZIP DRAMs in banks through 3.

4. Move the DIP DRAMs in bank to the CHIP RAM section
and add 1M x 4 DIP DRAMs in bank and 1M x 4 ZIP
DRAMs in banks 1 through 3.

Chip Memory

Chip memory (also known as Chip RAM) stores graphics
sound and other data that is accessible by the Amiga custom
chips. Certain software requiring large amounts of this type of
data, or many programs executing concurrently that require
this type of data, can quickly exhaust the one megabyte of
Chip RAM that comes in the A3000 as shipped. Another
megabyte of Chip RAM can be added. (See the motherboard
illustration on page 4-22 for the location of the Chip RAM.)
When adding Chip RAM, all eight of the empty sockets (U267-
U274) must be populated with the new RAM chips.

There are no jumpers to set when adding Chip RAM. If the new
Chip RAM is functioning properly (a memory test will be
performed at power up), it will automatically be recognized by
the operating system. The title bar of the Workbench screen

Expansion 4-19

(which shows how much "graphics" memory is available to the
system) should reflect the addition of the new memory. If this
number is not approximately 1 megabyte larger than it was
when the machine was operated without the new Chip RAM,
then the RAM is not working properly. Also, if the video screen
turns green when the A3000 is turned on, then none of the
Chip RAM is functioning properly. In either case, check that
the RAM chips were inserted properly and check for any bent
pins.

The following is a list of required parameters for the new Chip
RAM:

Organization:

256 kilobits by 4 bits (256K x 4)

Speed:

120 nanoseconds or less

Type:

page or static column mode

Package:

20-pin DIP

following are examples of some of the DRAMs that ar<
jptable:

TOSHIBA

TC5 14256

TC514258

OKI

MSM5 14256

MSM5 14258

HITACHI

HM514256

HM5 14258

NEC

jiPD424256

^PD424258

SHARP

LH64258

TMS44C256

The RAM part numbers listed DO NOTinclude the package
type information (ZIP or DIP). Therefore, you must specify the
package type you want when ordering these DRAMs (package
types will be suffixes to the part numbers listed).

t-20 Expansion

Installing Chip RAM

1. Install in empty sockets
U267-U274. All eight
sockets must be populated.

Installing FAST RAM

1. Remove S clip at top center
of daughterboard.

2. Left daughterboard up and
out.

3. Remove spacer.

4. Remove S clips from left and
right sides of backplane. (Be
sure to save the S clips and
reinstall them when
reassembling the A3000.)

See page 4-22 for location
of CHIP RAM sockets.

NOTE: Pin 1 of the chip
should be facing the rear
of the A3000.

s-clip

Expansion 4-21

Installing FAST RAM (cont'd)

5. Remove screws holding
platform.

6. Lift platform.

7. Disconnect ribbon cables
from motherboard.

8. Disconnect power supply
connector from
motherboard.

(Note that the connector is
secured by a clamp.)

Insert the RAM chips per the
instructions on pages 4-14
through 4-18. Set Jumper [852
for the RAM type installed, per
the instructions on page 4-16.

NOTE: When installing ZIP chips,
pin 1 of the chip should be at the left
as you are facing the front of the
A3000. See the illustration of the
ZIP chip on page 4-22.

screw
for

hard drive
mounting
plate

NOTE: To help identify screw locations, Drawing 5 above shows the hard
and floppy drives removed. When removing the center front screw, which
secures both the floppy drive and the platform, hold the floppy drive firmly.
To remove the screw marked ®, located on the platform behind the hard
disk, first remove the rear screws. Then lift the ribbon cable at the rear of
the hard drive to gain access to the screw.

Note orientation of cables before disconnecting, especially the location of
pin 1; see pages 4-11/4-12.

-22 Expansion

Location of RAM Sockets on Motherboard

Jumper J852

(See page 4-16

for

jumper

settings

for

Fast RAM.)

Fast
RAM

Expansion 4-23

Connecting Additional SCSI Devices

You can connect up to seven DMA SCSI devices to the A3000,
using the internal SCSI connector and the connector marked
SCSI PORT on the rear of the A3000.

When connecting external SCSI devices, gently insert the
connector of the first device into the A3000's external SCSI
PORT and secure the screws. The SCSI device will require its
own power supply. Additional SCSI devices can be connected
in a daisy-chain. (The first peripheral device connects to the
A3000, the second device connects to the first device, etc.)

Use the existing 50-pin ribbon cable to connect internal SCSI
devices. Each internal SCSI device must also be connected to
the internal power supply

Each SCSI device must be set to a different SCSI address. Note
that the A3000 SCSI controller is set to SCSI address 7 and the
internal hard drive is set to SCSI address 6. Addresses through
5 are available for additional SCSI devices.

If multiple SCSI hard disks are connected to the A3000, you
will need to remove the terminator packs on all but the last
external SCSI device in the chain, and all but the last internal
SCSI device in the chain. Refer to the manufacturer's
documentation for the location of the terminator packs on
each device.

For information on jumper settings for SCSI drives refer to
Appendix G.

Appendices

Specifications A-l

Appendix A
Technical Specifications

CPU: Motorola 68030, 32 Bit

Clock Speed: 25 MHz or 16 MHz

Coprocessors: Numeric coprocessor, either 6888 1(16 MHz)
or 68882 (25 MHz)
Multi-chip coprocessor system for DMA
video, graphics and sound

Memory: 2 MB RAM standard ( 1 MB Chip, 1 MB Fast];

expandable on motherboard up to a total
of 18 MB (2 MB Chip, 16 MB Fast);
additional RAM can be added via
expansion slots

ROM: 512KB

Interfaces: External:

Keyboard
Mouse/Joystick (2)
Serial (RS232, PC-compatible)
Parallel (Centronics, PC-compatible)
2 Video (DB23 15 KHz: RGB analog;

VGA DB15 31 KHz: Multiscanning

compatible RGB analog)
SCSI

Stereo Audio
Internal:
Amiga System Bus: 4 slots (100 pin)—

Zorro II & III
Secondary Bus System:

Two slots PC/AT-compatible (full size,

86- pin)

(slots are in line with Amiga 100-pin

slots)

A-2

Specifications

One 200-pin Fast slot (local 68030 bus) for

68040 ; etc.
SCSI

Video Slot:

1 video slot for internal video cards; in line
with 100-pin Amiga slot

Power Supply:

Switching, 135 watts, with dual-speed
thermostat-controlled fan

Keyboard:

Detachable, 94 keys U.S./96 keys
international

Disk Drive(s):

Standard: built-in 3.5-inch floppy drive

(capacity: 880 KB formatted)
Internal mounting locations for three 3.5

inch half-height drives (two already used)

Built-in SCSI hard drive
Built-in DMA SCSI controller; supports
up to 7 SCSI devices

External Disk
Drives:

Up to 2 optional Amiga-compatible floppy
disk drives

Video Display:

Complies with:
North America: RGB NTSC
International: RGB PAL

4096 Colors

Display
Enhancer:

See Appendix C

Environmental

Specification: Operating: 0-45°C (32 to 113°F)

Storage/Shipping: 0-60°C (32 to 140°F)

Specifications

A-3

MTBF
(Mean Time
Between
Failure)

Sound:

Text-to-speech
conversion:

1.86 year

4 independent sound channels configured as
two stereo channels

Built-in

Clock/Calendar: Built-in, with battery back-up

System Software: Multitasking; includes AmigaDOS,
Workbench, and various utilities

I/O Connectors B-l

Appendix B

Input/Output Connector
Pin Assignments

This section lists pin assignments for input/output connectors
on the A3000, The information in this section is highly
technical and is intended only for those expert in connecting
external devices to computers. You do not need this
information if you use a cable specifically designed for the
A3000 and the peripheral you want to connect.

If you attach peripherals with cables other than those
designed for use with the A3000, note: some pins on Amiga
connectors provide power outputs and non-standard signals.
Attempting to use cables not wired specifically (or the Amiga
may cause damage to the Amiga or to the equipment you
connect. The descriptions that follow include specific
warnings for each connector. For more information about
connecting peripherals, consult your Amiga dealer.

In the descriptions that follow, a horizontal line over the signal
name indicates a signal that is active low (e.g., STROBE). -

B-2

I/O Connectors

Serial Connector-DB25 Male (SERIAL PORT)

14 25

In the following table, the second column from the left gives
the Amiga pin assignments. The third and fourth columns
from the left give pin assignments for other commonly used
connections; the information in these two columns is given for
comparison only.

WARNING: Pins 9 and 10 on the Amiga serial connector are
used for external power. Connect these pins ONLY if power
from them is required by the external device. The table lists
the power provided by each of these pins.

I/O Connectors

B-3

Pin A3000 RS232 HAYES® Description

SHIELD

GND

Shield Ground

TXD

Transmit Data

RXD

Receive Data

RTS

Request to Send

CTS

Clear to Send

DSR

Data Set Ready

GND

System Ground

DCD

Carrier Detect

+ 12V

+ 12 Volts DC

-12V

- 12 Volt DC

AUDO

Audio out of A3000

S.SD

Speed Indicate

S.CTS

S.TXD

TXC

S.RXD

RXC

AUDI

Audio into A3000

S.RTS

DTR

Data Terminal Ready

SQD

Ring Indicator

TXC1

B-4

I/O Connectors

Parallel Connector-DB25 Female (PARALLEL
PORT)

13 1

I 1

25 14

WARNING: Pin 14 on the Amiga parallel connector supplies
+ 5 volts of power. Connect this pin ONLY if the power from it
is required by the external device. NEVER connect this pin to
an output of an external device or to a signal ground. Pins 17-25
are for grounding signals. DO NOT connect these pins directly
to a shield ground.

I/O Connectors

B-5

Name

Description

STROBE

Strobe

Data Bit (LSB)

Data Bit 1

Data Bit 2

Data Bit 3

Data Bit 4

Data Bit 5

Data Bit 6

Data Bit 7 (MSB)

ACK

Acknowledge

BUSY

Busy

POUT

Paper Out

SEL

Select

+ 5VPULLUP

+ 5VoltsDC(10mA|

Not Used

RESET

Reset

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

GND

Signal Ground

B-6

I/O Connectors

RGB Monitor Connedor-DB23 Male
(15 KHz VIDEO PORT)

^<^<'^""' , ~'^Tt r t'Tn

^r-^r-fr-rrrr-ir

-mnr-o

WARNING: Pins 21, 22 and 23 on the RGB monitor connector
are used for external powet Connect these pins ONLY if power
from them is required by the external device. The table below
lists the power provided by each of these pins.

Name

Description

XCLK

External Clock

XCLKEN

External Clock Enable

RED

Analog Red

GREEN

Analog Green

BLUE

Analog Blue

Digital Intensity (47 Ohm)

Digital Blue (47 Ohm)

Digital Green (47 Ohm)

Digital Red (47 Ohm)

CSYNC

Composite Sync

HSYNC

Horizontal Sync (47 Ohm)

VSYNC

Vertical Sync (47 Ohm)

GNDRTN

Return for XCLKEN

Zero Detect (47 Ohm)

Clock Out

GND

Ground

GND

Ground

GND

Ground

GND

Ground

GND

Ground

-12V

-5 Volts DC (50 mA)

+ 12V

+ 12 Volts DC (100 mA)

+ 5V

+ 5 Volts DC (100 mA)

I/O Connectors

B-7

Display Enhancer Video Connector-VGA DB15
Female (31 KHz VIDEO PORT)

Pin Description

Red Video

Green Video

Blue Video

Monitor Id Bit 2 (Ground)

Ground

6|!

Red Return (Ground)

Green Return (Ground)

Blue Return (Ground)

Key (Not Used)

101

Sync Return (Ground)

Monitor ID Bit (Ground)

Monitor ID Bit 1 (Ground)

131

Horizontal Sync

141

Vertical Sync

Not Used

B-8

I/O Connectors

Mouse/Game Controller Connectors-DB9 Male
(MOUSE PORTS)

If you use a mouse to control the Workbench, you must attach
it to mouse connector 1 (the front mouse connector on the
right side of the A3000). You can attach joystick controllers and
light pens to either of the connectors. The following tables
describe mouse, game controller, and light pen connections.

WARNING: Pin 7 on each of these connectors supplies +5
volts of power. Connect this pin ONLY if power from it is
required by the external device.

Connector 1 : Mouse

Name

Description

MOUSE V

Mouse Vertical

MOUSE H

Mouse Horizontal

MOUSE VQ

Vertical Quadrature

MOUSE HQ

Horizontal Quadrature

MOUSE BUTTON 2

Mouse Button 2

MOUSE BUTTON 1

Mouse Button 1

+ 5V

+ 5 Volts DC (100 mA)

GND

Ground

MOUSE BUTTON 3

Mouse Button 3

I/O Connectors

B-9

Connectors 1 and 2: Game Controller (Joystick)

Name

Description

FORWARD

Controller Forward

BACK

Controller Back

LEFT

Controller Left

RIGHT

Controller Right

POTX

Horizontal Potentiometer

FIRE

Controller Fire

+ 5V

+ 5 Volts DC (100 mA)

GND

Ground

POTY

Vertical Potentiometer

Connectors 1 and 2: Light Pen

Name

Description

Not Used

LIGHT PEN PRESS

Light Pen Switch

LIGHT PEN

Capture Beam Position

+ 5V

+ 5 Volts DC (100 mA)

GND

Ground

Not Used

I/O Connectors

External Disk Connector-DB23 Female
(FLOPPY DISK DRIVE PORT)

Pin Name

Description

RDY

Disk Ready

DKRD

Disk Ready Data

3-7

GND

Ground

MTRXD

Disk Motor Control

SEL3B

Select Drive 3

DRESB

Disk Reset

CHNG

Disk Has Been Removed From Drive —
Latched Low

+ 5V

+ 5 Volts DC

SIDEB

Select Disk Side — = Upper, 1 = Lower

WPRO

Disk Is Write Protected

TKO

Drive Head Position Over Track

DKWE

Disk Write Enable

DKWD

Disk Write Data

STEPB

Step The Head — Pulse, First Low,
Then High

DIRB

Select Head Direction —
0= Inner, 1 = Outer

SEL1B

Select Drive 1

SEL2B

Select Drive 2

INDEX

Disk Index Pulse

+ 12V

+ 12 Volts DC

I/O Connectors

B-ll

External SCSI Connector-DB25 Female
(SCSI PORT)

Description

REQ

MSG

7/0

RST

ACK

BSY

Ground

Data (LSB)

Ground

Data 3

Data 5

Data 6

Data 7 (MSB)

Ground

C/D

Ground

ATN

Ground

SEE

Parity

Datal

Data 2

Data 4

Ground

Termination Power

B-12

I/O Connectors

Internal SCSI Connector (MOTHERBOARD)

9 11 13151719212325272931333537394143454749

2 4 6 8 101214161820222426283032343638404244464850

Description

Data (LSB)

Datal

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7 (MSB)

Parity

Ground

Termination Power

Ground

ATN

Not Used

BSY

ACK

RST

MSG

SEL

C/D

REQ

I/O

All odd pins, except pin 25, are ground. Pin 25 is not used.

100 Pin Expansion Slot

I/O Connectors

B-13

Physical

ZorroII

Zorro III

Name

Address Phase Data Phase

Ground

+ 5VDC

OWN

-5VDC

SLAVEn

+ 12VDC

CFGOUTn

CFGINn

Ground
C3

Ground

C3 Clock

CDAC

CDAC Clock

CI Clock

OVR

XRDY

CI Clock

CINH
MTCR

CINH

MTCR

INT2

-12VDC

B-14

I/O Connectors

100 Pin Expansion Slot (cont'd.)

Physical
Pin Name

Zorro II
Name

Zorro III
Address Phase

Zorro III
Data Phase

29 LOCK

30 AD8

31 FCO

32 AD9

33 FC1

34 AD10

35 FC2

36 AD11

37 Ground

38 AD12

39 AD13

40 INT7

41 AD14

FCO

FC1

AD10

FC2

All

Ground

A12

A13

(EINT7)
A14

LOCK

FCO

FC1

AD10

FC2

All

Ground

A12

A13

42 INT5

(EINT5)

INT7

A14

INT5

INT6

Ground

LOCK

FCO

FC1

AD2

FC2

Ground

INT7

INT5

I/O Connectors

100 Pin Expansion Slot (cont'd.)

B-15

Physical

ZorroII

Zorro III

Name

Address Phase Data Phase

AD15

A15

INT4

(EINT4)

INT4

AD16

A16

BERR

AD17

A17
(VPA)

A17

MTACK

Ground

E Clock

DSO

(VMA)

DSO

AD18

A18
RST

A18

D10

RESET

AD19

A19

Dll

HIT

HLT

HIT

HLT

AD20

A20

D12

AD22

A22

A22 •

D14

AD21

A21

D13

AD23

A23

D15

BRn

Ground

BGACK

AD31

D15

A31

D31

BGn

B-16

I/O Connectors

100 Pin Expansion Slot (cont'd)

Physical

Zorro II

Zorro III

Name

Address Phase Data Phase

AD30

D14

A30

D30

DTACK

AD29

D13

A29

D29

READ

AD28

D12

A28

D28

DS2

LDS

DS2

AD27

Dll

A27

D27

DS3

UDS

DS3

Ground

CCS

SDO

N/A*

D16

AD26

D10

A26

D26

SD1

N/A*

D17

AD25

A25

D25

SD2

N/A*

D18

AD24

A24

D24

SD3

N/A*

D19

SD7

N/A*

D23

SD4

N/A*

D20

SD6

N/A*

D22

Ground

*N/A = Not applicable to this phi

ise.

I/O Connectors

100 Pin Expansion Slot (cont'd)

B-17

Physical

Zorro II

Zorro III

Name

Address Phase Data Phase

SD5

N/A

D21

Ground

SenseZ3

Ground

SenseZ3

E7M

DOE

IORST

BUSRST
GBG

IORST
BCLR

IORST

BCLR

INT1

(EINT1)

INT1

FCS

Not Used

FCS

DSl

Not Used

DSl

Ground

100

Ground

*N/A = Not a

ipplicable to this phase.

B-18

I/O Connectors

Video Slot

1 2 3 4 5 6 7 S 9 10 1112 131415 16 17 18

1 2 3 4 5 6 7 8 9 101112 13 14 15 16 17 18

[

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

standard video slot

extended video slot

Pin Signal

Reserved for

Expansion

Left Audio Out

Right Audio

Reserved for

Out

Expansion

+ 5 Volts DC

Analog Red

+ 5 Volts DC

Video Ground

+ 12 Volts DC

Analog Green

Video Ground

CSYNC

Analog Blue

XCLKEN

Video Ground

Burst Gate

C4 CLOCK

Video Ground

HSYNC (47 Ohm]

BO = DI

Video Ground

B3 = DB

VSYNC (47 Ohm)

G3 = DG

Comp Sync (Analog)

R3 = DR

PIXELSW (47 Ohm)

-5 Volts DC

Video Ground

XCLK

CI CLOCK

-5 Volts DC

Strobe

I/O Connectors

B-19

Extended Video Slot

standard video slot

extended video slot

Pin Signal

Ground

Monochrome Video

TBASE

CDAC Clock

POUT

C3 CLOCK

Busy

LPEN

ACK

SEL

Ground

PDO (LSB)

PD1

PD2

PD3

PD4

PD5

PD6

PD7 (MSB)

LED

Ground

Raw Audio Left

Audio Ground

Raw Audio Right

Audio Ground

Display Enhancer C-l

Appendix C

Using the Display Enhancer

Introduction

The A3000 includes special video display circuitry known as
the Display Enhancer. The Display Enhancer removes flicker
and visible scan lines from most interlaced and noninterlaced
graphics modes.

The Display Enhancer is software-compatible with existing
software and internal Amiga plug-in cards, as well as the new
ECS Productivity and Superhiies modes available with the new
Enhanced Denise chip and AmigaDOS 2.0. The Display
Enhancer can be used simultaneously with many external and
internal genlocks. The Display Enhancer significantly
augments the graphics presentation capabilities of the Amiga
3000.

C-2 Display Enhancer

Display Enhancer Main Features

• Compatible with both NTSC (NTSC-M) and PAL (PAL-B,
PAL-G, PAL-H) Amiga video formats. (Note: NTSC is the
video standard that is used throughout most of North
America, parts of Latin America and Japan. PAL is the
video standard that is used throughout Europe, Australia
and New Zealand.)

• Employs de-interlacing in Amiga interlaced display modes
to remove flicker and visible scan lines with full overscan
support.

• Employs scan-doubling in Amiga noninterlaced display
modes to remove visible scan lines without motion
artifacts (ghost effects).

• Severe overscan support.

• Supports the new ECS display modes (such as Productivity
mode) under AmigaDOS 2.0. The Display Enhancer
automatically detects Productivity mode and bypasses the
video data to the multiscan monitor.

• Enable/Disable mode switch allows bypassing of the
Display Enhancer video for output of the original Amiga
video to a multiscan VGA monitor. This is used to display
the ECS Superhires mode (1280x200/256 or 1280x400/
512) on the monitor.

Display Enhancer C-3

• Display Enhancer output is not interfered with by many
external and internal genlocks (NTSC or PAL), providing
high-resolution, flicker-free display of Amiga-only (RGB)
output.

• Transparent to software.

• Video output is compatible with standard VGA multiscan
monitors.

• A standard female VGA DB15 connector is provided.

• An Amiga monitor (A1084, A1084S, A1080, A2002) or
external composite encoder box ( A520) can remain
attached to the Amiga 's 23-pin RGB port, providing a
standard video display.

• Fully supports the Amiga's 4096-color palette and HAM
(hold-and-modify) modes.

Connecting a Multiscan Monitor

The Display Enhancer is compatible with standard VGA
multiscan monitors (like the Commodore 1950 MULTISCAN
Monitor), and provides a standard VGA DB15 female connector
(marked 31 KHz) for output to a multiscan monitor. For
instructions on connecting a multiscan monitor see the Amiga
3000 Quick Connect booklet.

C-4 Display Enhancer

Operation and Compatibility

The Display Enhancer is capable of operation in many of the
graphics modes available on the Amiga. In the noninterlaced
Amiga modes (320x200/256, and 640x200/256), the Display
Enhancer will automatically operate in Scan-double mode
when the Display Enhancer mode switch is set to the Enable
(DOWN) position. This means that the Display Enhancer
repeats every line to increase the raster scan rate from 15.734
KHz NTSC (15.625 KHz PAL) to 31.46 KHz NTSC (31.25 KHz
PAL). In this mode, the Display Enhancer removes visible scan
lines and provides full overscan and HAM support, giving text
and graphics a professional look. Another benefit of this mode
is that there are no motion artifacts (i.e., shearing or ghosting
effects with moving objects). This is of great value for
animation and game software featuring rapid object animation.

Note: The mode switch is located on the rear of the
A3000 main unit, next to the 31 KHz Video connector.

In the interlaced Amiga modes (320x400/512 and 640x400/
512), the Display Enhancer automatically operates in
Deinterlace mode when the mode switch is set to Enable
(DOWN) position. Here, the Display Enhancer stores the
previous video field and combines it with the current incoming
video field to remove flicker and visible scan lines. The raster
scan rate is doubled and provides full overscan and HAM
support. In this mode you may notice some motion artifacts
(i.e., ghosting effects) with fast-moving animated objects.

Another Amiga display mode, which uses the ECS (Enhanced
Chip Set) supported under AmigaDOS 2.0, is Productivity
Mode. This mode has a display of 640x480 with 4 colors out of
a palette of 64, and a raster scan rate of 31.46 KHz. In this
display mode, the Display Enhancer will automatically bypass
the video data to the multiscan monitor, since the raster scan
rate is already at 3 1.46 KHz and has no flicker or visible scan
lines.

Display Enhancer C-5

Still another Amiga display mode which uses the ECS under
AmigaDOS 2.0 is Supeihires mode. This mode has a display of
either 1280x200/256 or 1280x400/512, with 4 colors out of a
palette of 64 ; and a raster scan rate of 15.734 KHz NTSC
(15.625 KHz PAL). In this mode the Display Enhancer only
samples every other pixel and may cause a distorted display, so
you should set the mode switch to the Disable (UP) position.

If you encounter a display mode that adversely affects the
Display Enhancer, simply flip the mode switch UP to Disable
mode. Whatever display the Amiga generates will be sent to
the monitor as if the Display Enhancer were not in the system.

External/Internal Genlock Compatibility

The Display Enhancer is compatible with many external and
internal NTSC and PAL genlocks, including the new genlock
extensions supported in AmigaDOS 2.0.

To use the Display Enhancer with an external genlock, simply
connect the genlock to the A3000's 23-pin video port (marked
15 KHz), following the instructions given by the genlock's
manufacturer.

To use the Display Enhancer with an internal genlock card,
install the genlock card as instructed by the manufacturer.

After a genlock (internal or external) is connected or installed,
set the Display Enhancer mode switch to the Enable (DOWN)
position. The Display Enhancer will automatically provide a
flicker-free high-resolution display of the A3000's computer-
only output.

Once connected to the A3000, a genlock should normally
provide Amiga graphics and video to the composite monitor or
VCR connected to the genlock's video out connector.

C-6 Display Enhancer

If you experience any problems in obtaining a stable display
try adjusting the fine tuning control, using the technique
described in the Adjustment Procedure section of this
appendix. If this does not help, refer to the Troubleshooting
section of this appendix. (Note that some genlocks require a
stable input video source at all times to work correctly with
the Amiga.)

If the problem remains even after you have followed the
instructions in the Adjustment Procedure and
Troubleshooting sections, then it is likely that your genlock is
incompatible with the Display Enhancer. You can continue to
use your genlock with the A3000, except that you will not be
able to use the 31 KHz video output from the Display Enhancer
to view your Amiga graphics display.

Adjusting the Display Enhancer Fine Tuning
Control

There are two tuning adjustment controls for the Display
Enhancer: Fine and Coarse. These controls have been factory
preset to work with both NTSC- and PAL-based Amiga A3000s
and should normally not require adjustment. The Coarse
tuning control is not user adjustable; any adjustment must be
performed by an authorized Commodore-Amiga service center.
The Fine tuning control is user adjustable; if you are
experiencing display problems such as pixel "jittering", follow
the fine tuning adjustment procedure given in the next section.

Display Enhancer C-7

Adjustment Procedure

NOTE: The following description assumes familiarity
with standard Amiga operating features. If you need an
explanation of any of these features, such as using the
mouse to select an icon, see the tutorial material in
Chapter 1 of the Using the System Software manual
included with your A3000 computer.

To adjust the Display Enhancer fine tuning control, you must
have already connected a multiscan monitor to the Display
Enhancer 15-pin video output (marked 31 KHz). Power on the
monitor and then the A3000. Allow the A3000 to warm up for
approximately five minutes. Activate the De-interlace/Scan-
double mode of the Display Enhancer by flipping the mode
switch DOWN to the Enable position. The display may look
unusual and may have pixels "jittering/' but it should
otherwise be recognizable. The fine tuning adjustment will
stabilize the display.

Locate the fine tuning control opening on the rear of the
A3000, just next to the Enable/Disable mode switch. Position
the monitor so that you will be able to see the screen while you
are working at the rear of the A3000 with the plastic
adjustment tool (the adjustment tool is the small, screwdriver-
like tool supplied with the A3000; see the illustration below).

adjustment tool

fine tuning opening

C-8 Display Enhancer

Open the Workbench2.0 Prefs drawer and double-click on the
Screenmode icon. With the mouse/ select the Super Hires video
mode and click on the Use button. Your A3000 will then
switch to the 1280 x 200/256 display mode. You should then
flip the mode switch to the Disable (UP) position to put the
Display Enhancer into Bypass mode. Double-click first on the
Tools drawer and the Video Adjust drawer and then on the
Ttest3 icon to bring up a special test pattern window on your
screen.

Now, insert the adjustment tool straight into the opening
for the fine tuning control. Engage the tool in the screw
slot. Slowly turn the fine tuning control clockwise or
counterclockwise until all parts of the display are stable and
are not jittering. This should occur in one to fifteen full turns
of the fine tuning control screw. If you think that you have
gone too far, turn the fine tuning control in the opposite
direction. You may hear a slight clicking sound as you turn the
fine tuning control. This indicates that the screw has reached
the end of its travel, and you should turn the screw in the
opposite direction.

When you have achieved the best image you can with the Test3
program, double-click on the Testl icon. Flip the mode switch
to Enable (DOWN) position and, using the adjustment tool,
slowly turn the fine tuning control clockwise or
counterclockwise until all parts of the Testl pattern are stable
and are not jittering.

Display Enhancer C-9

Click anywhere in the lower half of the image to bring up the
title bar with the depth gadget in the upper right corner of the
screen. Click on the depth gadget to bring up the Workbench
screen; double-click on the Test2 icon, and repeat the same
adjustment procedure as with Testl. When the display is
stable, use the depth gadget to return to the Testl pattern and
check to make sure that it has not lost stability with the new
fine tuning setting. Then return to the Disable mode (UP) and
recheck the Test3 pattern as well. Be sure to look closely at all
the colors, lines, and patterns of all three images when
adjusting the fine tuning control for a sharp and stable display
Once all test patterns appear satisfactory, adjustment is
complete and you can return the mode switch to the Enable
position (DOWN).

// after attempting to adjust the fine tuning control you are
unable to obtain a stable display, please refer to the
Troubleshooting section that follows. Once you have the
Display Enhancer operating, you may need to adjust your
monitor's size and position controls.

NOTE: If the display at any time develops pixel jitter due to
component aging, you can slightly adjust the fine tuning
control to make the display stable again.

Troubleshooting

If you are unable to produce a stable display, check the
following:

1. Make sure the monitor you are using is a multiscan VGA-
compatible monitor. Be sure that the monitor cable is
correctly installed, and that the signal connections between
your monitor and the A3000's 15-pin 31 KHz video
connector are correct. Also check that your cables are
screwed tightly into the connectors at both ends, and that
your monitor is set for the correct mode (analog, RGB, etc.).

C-10 Display Enhancer

2. Make sure that all external peripherals are properly
connected to the A3000 and that their cables are screwed
tightly into their connectors.

3. Make sure that the Display Enhancer mode switch is in the
correct position for the fine tuning control adjustment. The
mode switch should be flipped to the DOWN position (the
Deinterlace/Scan-double Enable mode setting.),

4. Recheck your fine tuning, using the procedure described
previously. You may need to make sure that you have turned
the fine tuning control completely through the range of
fifteen full turns and slowly back again in order to correctly
fine tune the Display Enhancer.

NOTE: If you are still unable to properly adjust the Display
Enhancer and obtain a stable display with your specific
A3000/monitor setup, please contact your local authorized
Commodore service center.

Display Enhancer C-l 1

Display Enhancer Technical Specifications

Horizontal Frequency: NTSC— 3 1 .468 KHz unbypassed,

15.734 KHz bypassed
PAL— 31.25 KHz unbypassed,
15.625 KHz bypassed

Vertical Frequency: NTSC— 60 Hz

PAL— 50 Hz

Video Signal Outputs: Analog, 0.7 Vp-p/75 Ohms, positive

polarity

Video Sync Signals: Separate, TTL level, negative polarity

Pixel Output: NTSC— 35ns wide, 910 pixels/line

PAL — 35ns wide, 908 pixels/line

Horizontal Sync Pulse: NTSC— 2A\is wide, active low, TTL

level

PAL— 2.4(xs wide, active low, TTL
level

Vertical Sync Pulse: NTSC— 190jxs wide, active low, TTL

level

PAL — 160jjls wide, active low, TTL
level

Overscan Support: NTSC— 768 x 489 worst case

PAL— 768 x 576 worst case
Note: Certain software packages may
use overscan this severe; however, the
operating system nominally does not.

Video Bandwidth: 30 MHz @ - 3 dB

Keyboard D-l

Appendix D

Using the A3000 Keyboard

The A3000 Keyboard

The A3000 keyboard is divided into four sections:

• The Main Keyboard

• The Cursor Keypad plus Del and Help keys

• The Numeric Keypad

• The Function Keys

The general keyboard is illustrated on the following page.
When using the keyboard, keep the following points in mind:

• Keys can be program-controlled — that is, their use can be
defined by the software being used (e.g., an application
program, such as a word processor or spreadsheet). For
specific information on the program control of keys, refer
to the manual for the particular software package you are
using.

• The keys on the keyboard usually repeat for as long as they
are held down.

• You cannot interchange the numeral and the upper case
letter O, or the numeral 1 and the lower case letter 1.

• In some cases several keys may be used together, either
simultaneously or in a special sequence.

D-2 Keyboard

You can use the keyboard as well as the mouse to move around
the screen and select icons, gadgets, etc. In many programs you
use the keyboard to enter information. You can use the keys to
tell the computer what you want it to do, and to reply to
messages or questions the computer displays on the screen,
these messages and questions are sometimes called ''system
requesters" or simply "requesters."

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NOTE: The international keyboards have two
additional keys on the main keyboard, located at the
Shift key positions.

The Main Keyboard Area

The main keyboard area (see keyboard illustration) provides a
standard alphanumeric typewriter keyboard plus additional
keys with special uses and capabilities. The special keys
include:

Esc

The Esc (Escape] key, located at the top left of the keyboard, is a
program-controlled key, often used to expedite leaving or
entering a program or a program function.

Keyboard D-3

Tab

The Tab key, located two rows below the Esc key, can be
program-controlled to perform tab functions. The Tab key is
used extensively in word processing and desktop publishing
programs.

Ctrl

The Ctrl (Control) key, located just below the Tab key is a
program-controlled key that is often used with other keys to
perform special functions. The Ctrl key modifies other keys in
a way similar to the way that the Shift key does.

Caps Lock ^

The Caps Lock key is located next to the Ctrl key. When the
Caps Lock key is active a light on that key is illuminated. The
alphabetic characters (A through Z) will produce upper case
letters as long as the light is on. However, the upper characters
on the numeric row at the top of the main keyboard area (!,",#
through /) are not affected by the Caps Lock key. To type these
characters, you must hold down one of the Shift keys and press
the key for the desired character. To release the Caps Lock key,
press it again so that its light goes out.

Shift Keys

There are two Shift keys, marked with an upward arrow (♦)
and located on either side of the bottom row of letters (z,x,c,
etc.). These keys can perform the same function as the shift
keys on a standard typewriter— that is, depressing either Shift
key simultaneously with any alphabetic key or with any key
on the top row of the main keyboard area causes the upper
character on that key to be displayed. In addition, the Shift
keys are often used with other keys to perform special
functions.

D-4 Keyboard

Alt Keys

There are two Alt (Alternate) keys, located at the extreme left
and right sides of the bottom row of the keyboard. These keys
are also often used with other keys to perform special
functions. This key may modify other keys in a way similar to
the way the Shift key does.

a a

This key known as the left Amiga key is located on the
bottom row of the keyboard; just to the left of the space bar.
The left Amiga key is also used with other keys to perform
special functions. This key may modify other keys in a way
similar to the way the Shift key does.

a A

This key known as the right Amiga key is located on the
bottom row of the keyboard, just to the right of the space bar.
The right Amiga key is also used with other keys to perform
special functions. This key may modify other keys in a way
similar to the way the Shift key does.

NOTE: Simultaneously depressing the Ctrl key and
the left and right Amiga keys resets the A3000. See
Chapter 1 in the Using the System Software manual
for details.

Enter ^|

The Enter key is located on the right side of the main keyboard
area, in the middle two rows. You use this key to transmit a
command or information to the computer. In manuals, you
may see this key referred to by the symbol "«J " or the word
"Return".

Keyboard D-5

Backspace

The Backspace key is the key farthest right on the top row of
the main keyboard area. Pressing the Backspace key deletes
any characters to the left of the cursor and causes the cursor,
and any characters to the right of it, to move to the left.

Del and Help Keys

To the left of the main keyboard area are the Del and Help keys

Del

The Del (Delete) key is located just to the right of the top row
of the main keyboard area. Pressing the Del key deletes the
character at the cursor position. Any characters to the right of
the cursor move to the left.

Help

The Help key located to the right of the Del key, is a program-
controlled key that a developer can use to provide additional
information or user assistance while a program is running.

The Cursor Keypad

The four cursor keys are grouped in a small keypad located on
the bottom right side of the keyboard, between the main
keyboard area and the numeric keypad. These keys control the
movement of the cursor (up, down, left, right) on the screen
display. The direction in which each key moves the cursor is
indicated by the direction of the arrow displayed on the top of
the individual key. These keys may also have special functions,
depending on the software application.

D-6 Keyboard

The Numeric Keypad

The Numeric Keypad is located to the far right of the keyboard.
The keys are arranged in a calculator layout to facilitate
numeric data entry. The numeric and arithmetic symbol keys
on the keypad act just like the numeric and arithmetic symbol
keys in the main keyboard area of the keyboard. You use the
Enter key on the numeric keypad just as you use the Return
key on the main keyboard — that is, to transmit data and
commands to the computer.

The Function Keys

The Function Keys, located at the top of the keyboard and
numbered Fl through F10, are program-controlled keys.

Using the Amiga Without a Mouse

On the Amiga, the keyboard can generally perform the same
actions as the mouse. See Chapter 2 in the Using the System
Software manual for details on using the Amiga without a
mouse.

Install Disk

E-l

Appendix E

Using the A3000 Install Disk

NOTE: Protect the information on your original A3000
Install disk by using the write-protect tab. Make a copy
of the disk and put the original in a safe place. Always
use the copy, NOT the original.

The A3000 Install disk included with your computer contains
the following software, designed to let you reinstall your
original system software on the A3000's hard disk:

PrepHD

FormatHD

InstallHD

This appendix tells how to use this software.

The A3000 Install disk also includes a number of Workbench
drawers, including Prefs, Shell, System, Expansion, Tools,
Utilities and Trashcan. For descriptions of how to use these
drawers, see the Introducing the System Software manual.

CAUTION: The Install software is concerned with
reinstalling the system software only, and does not deal
with any application software that you may have
installed on your disk. To make sure that you have a
backup copy of all application software on the hard
disk, it is extremely important that you regularly use
the HDBackup or the BRU (Backup and Restore
Utility) software described in the Introducing the
System Software manual.

E-2 Install Disk

About the Installation Software

As noted above, the reinstallation procedure involves the
PrepHD, FormatHD and InstallHD programs. These programs
are used in reverse order to address problems at increasing
levels of severity.

Before you use these programs, you should try less drastic
measures. For example, if only a few files or directories on your
disk have been corrupted, you should restore the corrupted
files from your regular backups. In other words, you should
always try to recover your disk by using the least severe
procedures first.

The PrepHD, FormatHD and InstallHD programs are
summarized below:

PrepHD — Under severe conditions, your hard drive may be so
damaged that a complete reconstruction is necessary. PrepHD
performs a low-level format of the hard disk— that is, PrepHD
sets up the disk information required to manage the disk as a
whole prior to a complete reformatting. This program should
be run only as a final resort, since all information stored on the
hard disk will be destroyed. If you use this program, you must
follow it with FormatHD and InstallHD, in that order,

FormatHD — Performs a high-level format of the hard disk —
that is, FormatHD sets up the disk to receive the information
(such as programs and data) that the user actually works with.
FormatHD should be used only as a last resort when a
complete reconstruction is necessary, since all user
information stored on the hard disk will be destroyed. If you
use this program, you must follow it with InstallHD.

InstallHD — Installs the system software on the selected
partition. You can use this program by itself, without having
used FormatHD or PrepHD.

Install Disk

E-3

Reinstalling the System Software
on the Hard Disk

To do a low-level and high-level format of the hard disk and
reinstall the system software, follow the instructions below.

Booting the A3000lnstall Disk

Boot the Amiga with the A3000Install disk in the internal
floppy drive (DFO/:). Do not boot from the hard disk. When the
system boots, you will see the A3000Install icon on the screen.
Double-click on the icon, and the A3000Install window will
appear.

Using PrepHD

To prepare the entire hard disk, double-click on the PrepHD
icon, and a new window will appear. The window will provide
a series of prompts that will guide you through the process of
performing a low-level format of your hard disk. In this
process, the drive will be re-partitioned to the standard
configuration.

NOTE: This operation can take up to half an hout All
information on the hard disk will be erased.

You will be asked if you are sure that you want to continue
with the procedure. Type a Y for yes or an N for no, and then
press Return. If you type Y, the Amiga automatically begins the
PrepHD process. Note that the hard disk LED on the Amiga's
front panel will not be lit during PrepHD. When PrepHD is
complete, the system will display the message "Hard disk prep
completed". You should then reboot the machine and run the
FormatHD utility.

£-4 Install Disk

Be sure to leave the Install disk in the floppy disk drive when
you reboot. When the Workbench screen reappears, open the
A3000Install window and proceed with the formatting process
as described below.

Using FormatHD

To reformat the entire hard disk, double-click on the
FormatHD icon. A new window will appear, displaying the
following message:

WARNING: This will reformat hard disk WB2.x:
All information on the hard disk will be lost !
Are you sure you want to continue?

Again, type either a Y for yes or an N for no and press Return.

The system must format the partition cylinder by cylinder, so
do not be alarmed if it seems to be taking a long time. You will
be able to follow the progress on the screen. The system
displays which cylinder is being formatted/verified and how
many cylinders are left to be formatted.

When formatting is complete, a message like the following
appears:

Hard disk format complete .

Would you like the system software to be installed

on your hard disk?

If you want to proceed with the installation, type Y and press
the Return key. The FormatHD program will then start the
InstallHD program. If you type N and press Return (or just
press Return), the FormatHD program will end without calling
the InstallHD program.

Install Disk E-5

Using InstallHD

To reinstall the system software on the hard disk drive, double-
click on the InstallHD icon. This program copies the files from
the Workbench and Extras disks (versions 1.3 and 2.0) and the
A3000 Kickstart disk onto the hard disk. You will have to
insert the diskettes into the disk drive(s) at the proper time. Be
sure to keep unaltered copies of all these floppy disks for this
purpose.

After double-clicking on the InstallHD icon, you will see a
message telling you that the program will reinstall the system
software on your hard disk, and that the files on the hard disk
will be overwritten. You will then be asked:

Are you sure you want to continue?

Type Y for yes or N for no and press Return. If you type Y,
watch the screen for requesters that ask you to insert a disk
into the floppy drive so that the appropriate files can be copied
to the hard drive.

The first requester that appears asks you to insert your
Workbench2.0 disk into any drive. When the disk is
inserted, the program will copy the files onto the hard drive.
Subsequently, you will be prompted to insert each of the five
original system disks into any drive.

When the system software has been reinstalled and the system
has been properly configured, you will see the following
message:

Software installation is now complete .

Remove all floppy disks from the Amiga and reboot the
machine.

E-6 Install Disk

When the Workbench screen appears, you will note that the
hard disk has been returned to the configuration it had when
shipped from the factory: that is, only the system software is
on the disk, and the disk contains only the default partitions.
Therefore, any changes that you had made to the hard disk
(e.g., adding partitions or installing application software] will
have to be redone. If you had added partitions, you can use
HDToolbox to reinstall them. (See Chapter 6 in the
Introducing the System Software manual for details on using
HDToolbox.) If you had installed application software, you
should have used HDBackup or BRU (Backup and Restore
Utility) to make backup copies of these programs. Use the
backup copies to reinstall the software. (See the Introducing
the System Software manual for details on using HDBackup
and BRU.)

Schematics

F-l

Appendix F
A3000 Schematics

NOTE: The drawings in this appendix are for reference
only and are subject to change without notice as
required by product improvements.

F-2 Schematics

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Jumpers

G-l

Appendix G
Jumper Settings

JUMPER PINS

JUMPER SETTINGS

313311 313311 313311 313311
-01 -02 -03 -04 FUNCTION

Quadrature Clock Phasing

FPU Clock Source

System Clock Source

FPU CS/BERR

CPU Clock Source

ROM Timing

A2000 ROM Compatibility Jumpers

NTSC/PAL Select

Tick Clock Source

Disable DF1: ( 1-2 to enable)

Light Pen Source

VDE Scan Double Only Jumper

VDE PLL Loop Adjust

VDE Factory Test Points

WD33C93 Speed

RAM Controller Speed Jumper

-012A Ramsey only (See Notes)

The ROM timing circuit provides four different speed settings to match the
output enable and access timing of the system ROMs .

To set the jumpers, determine the output enable time and access times for
the ROMs you wish to use . The ROM must have lower values than for the setting
you select.

J100

2-3

1-2

J101

2-3

J102

2-3

J103

3-4

J104

1-2

J151

2-3

1-2

J152

2-3

1-2

J180

2-3

J181

2-3

J200

1-2

2-3

1-2

2-3

J350

1-2

J351

2-3

J352

2-3

J481

2-3

J482

1-2

J483

J800

1-2

J851

1-2

2-3

J852

4-5

J853

2-3

Notes:

J150,

.J151:

ROMT

iming.

System standard ROMs have T oe = 110 ns, and T a

250 ns,

CLK

J151

J150

T oe (min)

T acc {min

16 MHz

2-3

157 ns

250 ns

16 MHz

2-3

1-2

220 ns

312 ns

16 MHz

1-2

2-3

282 ns

375 ns

16 MHz

1-2

345 ns

437 ns

25 MHz

2-3

90 ns

160 ns

25 MHz

2-3

1-2

130 ns

200 ns

25 MHz

1-2

2-3

170 ns

240 ns

25 MHz

1-2

210 ns

280 ns

G-2 Jumpers

J180, J181: ROM Compatibility Jumpers
J180 J181
A2000/A500 ROMs : 1-2 1-2
A3000 ROMs : 2-3 2-3

J851-J853: RAM Controller Compability Settings

J852 J853
-012A Ramsey w/ 256Kx4 RAMs 4-5 2-3
Later Ramseys w/ 256Kx4 RAMs 2-3 1-2
Later Ramseys w/ 1Mx4 RAMs 1-2 1-2

See the motherboard illustration on the following page for
jumper locations.

lumpers G-3

iBBirrrfli I E J^ T o| oi

a □ o"'

Jumper Locations on the A3000 Motherboard

Index

100-pin expansion slot, B-13, B-17

A3000

booting, 3-8

caring for, 3-20

expanding, 1-7, 4-1

features, standard, 2-1, 2-3

hard disk, 3-17, 3-19, E-l - E-6

keyboard, D-l

overview, 1-1

parts, 1-3

schematics, F-l - F-17

turning off, 3-16

turning on, 3-7
A3000 documentation, 1-8

Quick Connect, 1-7, 1-8, 3-7,
C-3

Using the System Software, 1-2,
1-7, 1-8,2-2-2-7,3-1,3-5,
3-6,3-8,3-10,3-11,3-14,
3-15,3-17
active low signal, B-l
adding

disk drives, 4-4

options, 4-6

SCSI devices, 4-4, 4-12
AmigaDOS, 3-2, 4-5, C-l, C-2
analog RGB output
application programs, 3-1
Autoconfig, 2-5

backing up

floppy disks, 3-14

hard disk, 3-18, 3-19, E-l

original disks, 3-14
booting the A3000, 3-8

from floppy disk, 3-8

from hard disk, 3-8
Bridgeboard, 1-1
BRU (Backup and Restore Utility),

E-l, E-6
built-in clock/calendar, 1-6
bus expansion slots, 4-1, 4-2, 4-8

cache memory, 2-1
CAD/CAM programs, 2-6
caring for

A3000, 3-20

floppy disks, 3-23

mouse, 3-21

Chip RAM, 1-1, 4-3, 4-13, 4-15,

4-18,4-19
cleaning mouse, 3-21
clock speed, A-l
command line processing, 2-4
composite signal
connecting a multiscan monitor,

C-3
connecting SCSI devices, 4-12, 4-23
connectors
external
DB25 male( serial port), B-2
DB25 female (parallel port),

B-4
DB23 male (15MHz video
port), B-6

VGA DB15 female (31 MHz
video port), B-7
DB23 female (floppy disk
drive port), BIO
DB25 female (SCSI port), B-ll
internal
SCSI connector, 2-3, 4-23
(motherboard), B-l 2
100-pin video slot
standard, B18
extended, B-l 9
contents, hard disk, 3-19
coprocessors, 4-1
numeric, A-l
multichip, A-l
copying programs to hard disk, 3-19
CPU (central processing unit), 1-3, A-l
cursor keypad, D-5

daughterboard 4-2, 4-3, 4-8, 4-9
female connector, B-7
DB23 female connector, B-10
DB23 male connector, B-6
DB25 female connector, B-4
DB25 female connector, B-ll
DB25 male connector, B-2
DFO, 3-8

DIP RAM, 4-15, 4-19, 4-22
disk drives, adding, 4-4, 4-11, 4-12
disk, working, 3-14
disks/drives

floppy, 1-4, 1-6,3-2,3-3, A-2
hard, 1-4, 1-6, 2-2, 3-2, 3-5, 3-17,
A-2, E-l -E-6

Index

Display Enhancer, 1-2, 1-3, 2-2, 2-6,
C-l
adjusting fine tuning control,

C-6
connecting a multiscan

monitor, C-3
external/internal genlock

compatibility, C-5
features, C-2
operation and compatibility,

C-4
technical specifications, C-ll
troubleshooting, C-9
video connector ports, C-5, C-7,
C-9
display modes, 2-6, 2-7
DMA SCSI controller, 1-2, 1-3, 2-3,

4-23
documentation, A3000, 1-8
double clicking, mouse button, 3-11
dragging, windows, 3-14
DRAMS, 4-14 -4-19
Page Mode, 4-17
Static Column Mode, 4-17

ECS (Enhanced Chip Set), 1-2, C-l,

C-2
enable/disable mode switch, C-2,

C-4, C-7, C-8
Enhanced Denise chip, 2-2, C-l
expanding the A3000, 1-7, 4-1

Chip RAM, 4-3

memory, 4-3

PC emulation
expanding

bus, 4- 1

fast, 4-1, 4-2

PC/AT, 4-1

video, 4-1, 4-3
expansion slots, 1-2, 1-4, 2-5, 4-1
extended video slot
external connectors, 1-4, B-10

gadgets, 3-13, 3-14

genlock, 1-2, 1-7, 2-2, 4-3, C-l

getting started, 3-1

graphical user interface (GUI], 2-3,

3-9
graphics RAM, 1-1
graphics display modes, 2-6
graphics capabilities, 2-5

hard disk, 2-2, 3-2, 3-5, 3-17, 4-4,
4-12, E-l-E-6
adding, 4-4, 4-12
backing up, 3-18, E-l, E-6
contents, 3-19
copying programs to, 3-17
formatting, 3-17, E-2, E-4
installing, 4-12
loading programs from, 3-18
partitions, 3-19, E-3, E-6
saving/retrieving files, 3-18

hardware features

HDBackup,3-19, E-l, E-6

high- resolution (Hires) screen, 2-5,
2-6

I/O connector pin assignments
icons, 2-3,3-9,3-11
installing

Chip RAM, 4-20

expansion cards, 4-8

Fast RAM, 4-20

floppy disk drive, 4-10, 4-1 1

hard disk drive4-10, 4-12

RAM chips, 4-13

video expansion cards, 4-9

interfaces A- 1

internal SCSI connector
external, A-l
internal, A-l

Fast RAM, 1-1,4-13-4-17
fast slot, 4-1, 4-2
features, 2-1

hardware, 2-1 - 2-3
standard Amiga, 2-3
floating point unit, 2-1
floppy disk drive, installing
floppy disk port/connector, B-10
floppy disks, 1-5, 3-2, 3-3, 3-23
formatting disks, 3-17

joystick pin connectors, B-9
jumpers, 4-11, 4-12, G-l— G-3

keyboard areas, D-2

cursor, D-5

main, D-2

numeric, D-5, D-6
keyboard port
keyboard, 1-5, A-l, D-l - D-6

Index

left mouse button, 3-11
light pen pin connectors, B-9
loading programs

from floppy disk, 3-15

from hard disk, 3-18
location of RAM sockets on
motherboard, 4-22

main keypad
main keys

Alt, D-4

Amiga, D-4

Backspace, D-5

Caps Lock, D-3

Ctrl, D-3

Del, D-5

Enter, D-4

ESC, D-2

Function keys, D-6

Help, D-5

Shift, D-3

Tab, D-3
main unit, 1-3
memory expansion on motherboard,

4-3
menu bar, 3-12
menu button, 3-6, 3-12
menu, 3-9, 3-12
microprocessor, 1-1
microprocessor, 68030, 2-1
monitor, 1-6, 3-7
motherboard, 1-1, 1-2
motherboard, location of RAM

sockets on, 4-22
mouse buttons

menu, 3-6, 3-12

selection, 3-6, 3-1 1 - 3-13
mouse port

mouse, 1-5,3-5,3-6,3-11
mouse, caring for, 3-21
mouse/game controller

connectors/ports
moving pointer and selecting, 3-11
MS-DOS, 4-5
multiscan monitor, 2-6

connecting, C-3
multitasking, 2-4, 3-13

NTSC video standard, 1-3, 2-5

numeric coprocessor, 68881/68882,

1-1, 2-1, 2-2
numeric keypad, D-5, D-6

open-architecture machine, 1-1
operating systems, 3-2
options, adding, 4-6
overscan, C-2, C-ll
overview of the Amiga, 1-1

Page Mode DRAMS, 4-14
PAL video standard, 2-5
parallel port/connector, B-4
partitions, hard disk

system, 3-19

work, 3-19
parts of the A3000, 1-3
PC (personal computer) emulation

with bridgeboard, 1-1, 1-4,
peripherals, adding

external, 1-7

internal, 1-7
pin assignments, I/O connectors, B-l
pixels, 2-5, 2-6
pointer, 3-9-3-11
power supply, 1-4, 4-10, A-l
Productivity mode, 1-2, 2-2, 2-6
programming languages, 3-1
protecting floppy disk info, 3-3

Quick Connect, 1-7, 1-8, 3-7, C-3

RAM sockets, location of on

motherboard, 4-22
RAM, 1-1, 1-3

Fast, 1-1,4-3, 4-14, 4-16, A-l

Chip, 1-1, 4-3, 4-13, 4-15, 4-18,
4-19, A-l
read, from disk, 1-6, 3-3
read/write position, 3-4
removing

floppy disk drive, 4-11

hard disk drive, 4-12
removing cover, A3000, 4-6
RGB monitor connector, C-3
rebooting, 3-16
ROM, A-l

saving your work, 3-15
saving/retrieving hard disk files,

3-18
schematics, A3000, F-l - F-17
screen size, pixels, 2-6
SCSI devices, adding, 4-4, 4-12

Index

SCSI, DMA

controller, 1-2, 1-3, 2-3, 4-23
devices, 1-2, connecting, 4-23
SCSI port/connector, B-l 1
selection button, 3-6, 3-11 - 3-13
serial port/connector, B-2
shell, 2-4
software, 1-5, 3-1
static column mode DRAMS
standard Amiga features, 2-1, 2-3
storage medium, 3-2
static electricity, 4-13
stereo sound, 2-4, A-3
Superhires mode, 1-2, 2-2, 2-6

technical specifications, A-l
text-to-speech conversion, 2-4, A-3
title bar, 3-11
turning off A3000, 3-16
turning on A3000, 3-7

Using the System Software, 1-2, 1-8,
2-2 - 2-7, 3-1, 3-5, 3-6, 3-8, 3-10,
3-11,3-14,3-15,3-17

utilities, 3-2

using Amiga without mouse, D-6

video modes

Productivity, 1-2, 2-2, 2-6, C-l,
C-2, C-4

Superhires, 1-2, 2-2, 2-6, C-l,
C-2, C-5
video slot, 4-3
video standards

NTSC, 4-4, A-2, C-2, C-4

PAL, 4-4, A-2, C-2 ; C-4
video port/connector, 1-6, B-6, B-7
video expansion, 1-2, 4-3

wait pointer, 3-12

windows, 3-9

Workbench, 2-3, 2-4, 2-5, 3-9, 3-11,
3-19
screen, 3-8, 3-10
features, additional, 3-13

Work window, 3-12

working disk, 3-5, 3-14

write protect, 3-3

write, to disk, 1-6, 3-3

write-protect tab, 3-3

write-inhibit, 3-3, 3-4

write-enable, 3-3, 3-4

Work icon, 3-12

Zorro cards, 4-1, A-l, B-13 - B-17
ZIP RAM, 4-15, 4-19, 4-22

C* Commodore"

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